721990620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{269}}^1$

素因数の和:365

約数の個数: 288

約数和(自身を含む): 2509678080

約数和(自身を除く): 1787687460

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 31, 36, 37, 39, 45, 52, 60, 62, 65, 74, 78, 90, 93, 111, 117, 124, 130, 148, 155, 156, 180, 185, 186, 195, 222, 234, 260, 269, 279, 310, 333, 370, 372, 390, 403, 444, 465, 468, 481, 538, 555, 558, 585, 620, 666, 740, 780, 806, 807, 930, 962, 1076, 1110, 1116, 1147, 1170, 1209, 1332, 1345, 1395, 1443, 1612, 1614, 1665, 1860, 1924, 2015, 2220, 2294, 2340, 2405, 2418, 2421, 2690, 2790, 2886, 3228, 3330, 3441, 3497, 3627, 4030, 4035, 4329, 4588, 4810, 4836, 4842, 5380, 5580, 5735, 5772, 6045, 6660, 6882, 6994, 7215, 7254, 8060, 8070, 8339, 8658, 9620, 9684, 9953, 10323, 10491, 11470, 12090, 12105, 13764, 13988, 14430, 14508, 14911, 16140, 16678, 17205, 17316, 17485, 18135, 19906, 20646, 20982, 21645, 22940, 24180, 24210, 25017, 28860, 29822, 29859, 31473, 33356, 34410, 34970, 36270, 39812, 41292, 41695, 41964, 43290, 44733, 48420, 49765, 50034, 51615, 52455, 59644, 59718, 62946, 68820, 69940, 72540, 74555, 75051, 83390, 86580, 89466, 89577, 99530, 100068, 103230, 104910, 108407, 119436, 125085, 125892, 129389, 134199, 149110, 149295, 150102, 157365, 166780, 178932, 179154, 199060, 206460, 209820, 216814, 223665, 250170, 258778, 268398, 298220, 298590, 300204, 308543, 314730, 325221, 358308, 375255, 388167, 433628, 447330, 447885, 500340, 517556, 536796, 542035, 597180, 617086, 629460, 646945, 650442, 670995, 750510, 776334, 894660, 895770, 925629, 975663, 1084070, 1164501, 1234172, 1293890, 1300884, 1341990, 1501020, 1542715, 1552668, 1626105, 1791540, 1851258, 1940835, 1951326, 2168140, 2329002, 2587780, 2683980, 2776887, 3085430, 3252210, 3702516, 3881670, 3902652, 4011059, 4628145, 4658004, 4878315, 5553774, 5822505, 6170860, 6504420, 7763340, 8022118, 9256290, 9756630, 11107548, 11645010, 12033177, 13884435, 16044236, 18512580, 19513260, 20055295, 23290020, 24066354, 27768870, 36099531, 40110590, 48132708, 55537740, 60165885, 72199062, 80221180, 120331770, 144398124, 180497655, 240663540, 360995310, 721990620]

約数ペア:

[(1, 721990620), (2, 360995310), (3, 240663540), (4, 180497655), (5, 144398124), (6, 120331770), (9, 80221180), (10, 72199062), (12, 60165885), (13, 55537740), (15, 48132708), (18, 40110590), (20, 36099531), (26, 27768870), (30, 24066354), (31, 23290020), (36, 20055295), (37, 19513260), (39, 18512580), (45, 16044236), (52, 13884435), (60, 12033177), (62, 11645010), (65, 11107548), (74, 9756630), (78, 9256290), (90, 8022118), (93, 7763340), (111, 6504420), (117, 6170860), (124, 5822505), (130, 5553774), (148, 4878315), (155, 4658004), (156, 4628145), (180, 4011059), (185, 3902652), (186, 3881670), (195, 3702516), (222, 3252210), (234, 3085430), (260, 2776887), (269, 2683980), (279, 2587780), (310, 2329002), (333, 2168140), (370, 1951326), (372, 1940835), (390, 1851258), (403, 1791540), (444, 1626105), (465, 1552668), (468, 1542715), (481, 1501020), (538, 1341990), (555, 1300884), (558, 1293890), (585, 1234172), (620, 1164501), (666, 1084070), (740, 975663), (780, 925629), (806, 895770), (807, 894660), (930, 776334), (962, 750510), (1076, 670995), (1110, 650442), (1116, 646945), (1147, 629460), (1170, 617086), (1209, 597180), (1332, 542035), (1345, 536796), (1395, 517556), (1443, 500340), (1612, 447885), (1614, 447330), (1665, 433628), (1860, 388167), (1924, 375255), (2015, 358308), (2220, 325221), (2294, 314730), (2340, 308543), (2405, 300204), (2418, 298590), (2421, 298220), (2690, 268398), (2790, 258778), (2886, 250170), (3228, 223665), (3330, 216814), (3441, 209820), (3497, 206460), (3627, 199060), (4030, 179154), (4035, 178932), (4329, 166780), (4588, 157365), (4810, 150102), (4836, 149295), (4842, 149110), (5380, 134199), (5580, 129389), (5735, 125892), (5772, 125085), (6045, 119436), (6660, 108407), (6882, 104910), (6994, 103230), (7215, 100068), (7254, 99530), (8060, 89577), (8070, 89466), (8339, 86580), (8658, 83390), (9620, 75051), (9684, 74555), (9953, 72540), (10323, 69940), (10491, 68820), (11470, 62946), (12090, 59718), (12105, 59644), (13764, 52455), (13988, 51615), (14430, 50034), (14508, 49765), (14911, 48420), (16140, 44733), (16678, 43290), (17205, 41964), (17316, 41695), (17485, 41292), (18135, 39812), (19906, 36270), (20646, 34970), (20982, 34410), (21645, 33356), (22940, 31473), (24180, 29859), (24210, 29822), (25017, 28860)]