648490860

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1$

素因数の和:438

約数の個数: 240

約数和(自身を含む): 2162899200

約数和(自身を除く): 1514408340

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 37, 45, 54, 60, 62, 74, 81, 90, 93, 108, 111, 124, 135, 148, 155, 162, 180, 185, 186, 222, 270, 279, 310, 324, 333, 349, 370, 372, 405, 444, 465, 540, 555, 558, 620, 666, 698, 740, 810, 837, 930, 999, 1047, 1110, 1116, 1147, 1332, 1395, 1396, 1620, 1665, 1674, 1745, 1860, 1998, 2094, 2220, 2294, 2511, 2790, 2997, 3141, 3330, 3348, 3441, 3490, 3996, 4185, 4188, 4588, 4995, 5022, 5235, 5580, 5735, 5994, 6282, 6660, 6882, 6980, 8370, 9423, 9990, 10044, 10323, 10470, 10819, 11470, 11988, 12555, 12564, 12913, 13764, 14985, 15705, 16740, 17205, 18846, 19980, 20646, 20940, 21638, 22940, 25110, 25826, 28269, 29970, 30969, 31410, 32457, 34410, 37692, 38739, 41292, 43276, 47115, 50220, 51615, 51652, 54095, 56538, 59940, 61938, 62820, 64565, 64914, 68820, 77478, 92907, 94230, 97371, 103230, 108190, 113076, 116217, 123876, 129130, 129828, 141345, 154845, 154956, 162285, 185814, 188460, 193695, 194742, 206460, 216380, 232434, 258260, 282690, 292113, 309690, 324570, 348651, 371628, 387390, 389484, 400303, 464535, 464868, 486855, 565380, 581085, 584226, 619380, 649140, 697302, 774780, 800606, 876339, 929070, 973710, 1045953, 1162170, 1168452, 1200909, 1394604, 1460565, 1601212, 1743255, 1752678, 1858140, 1947420, 2001515, 2091906, 2324340, 2401818, 2921130, 3486510, 3505356, 3602727, 4003030, 4183812, 4381695, 4803636, 5229765, 5842260, 6004545, 6973020, 7205454, 8006060, 8763390, 10459530, 10808181, 12009090, 14410908, 17526780, 18013635, 20919060, 21616362, 24018180, 32424543, 36027270, 43232724, 54040905, 64849086, 72054540, 108081810, 129698172, 162122715, 216163620, 324245430, 648490860]

約数ペア:

[(1, 648490860), (2, 324245430), (3, 216163620), (4, 162122715), (5, 129698172), (6, 108081810), (9, 72054540), (10, 64849086), (12, 54040905), (15, 43232724), (18, 36027270), (20, 32424543), (27, 24018180), (30, 21616362), (31, 20919060), (36, 18013635), (37, 17526780), (45, 14410908), (54, 12009090), (60, 10808181), (62, 10459530), (74, 8763390), (81, 8006060), (90, 7205454), (93, 6973020), (108, 6004545), (111, 5842260), (124, 5229765), (135, 4803636), (148, 4381695), (155, 4183812), (162, 4003030), (180, 3602727), (185, 3505356), (186, 3486510), (222, 2921130), (270, 2401818), (279, 2324340), (310, 2091906), (324, 2001515), (333, 1947420), (349, 1858140), (370, 1752678), (372, 1743255), (405, 1601212), (444, 1460565), (465, 1394604), (540, 1200909), (555, 1168452), (558, 1162170), (620, 1045953), (666, 973710), (698, 929070), (740, 876339), (810, 800606), (837, 774780), (930, 697302), (999, 649140), (1047, 619380), (1110, 584226), (1116, 581085), (1147, 565380), (1332, 486855), (1395, 464868), (1396, 464535), (1620, 400303), (1665, 389484), (1674, 387390), (1745, 371628), (1860, 348651), (1998, 324570), (2094, 309690), (2220, 292113), (2294, 282690), (2511, 258260), (2790, 232434), (2997, 216380), (3141, 206460), (3330, 194742), (3348, 193695), (3441, 188460), (3490, 185814), (3996, 162285), (4185, 154956), (4188, 154845), (4588, 141345), (4995, 129828), (5022, 129130), (5235, 123876), (5580, 116217), (5735, 113076), (5994, 108190), (6282, 103230), (6660, 97371), (6882, 94230), (6980, 92907), (8370, 77478), (9423, 68820), (9990, 64914), (10044, 64565), (10323, 62820), (10470, 61938), (10819, 59940), (11470, 56538), (11988, 54095), (12555, 51652), (12564, 51615), (12913, 50220), (13764, 47115), (14985, 43276), (15705, 41292), (16740, 38739), (17205, 37692), (18846, 34410), (19980, 32457), (20646, 31410), (20940, 30969), (21638, 29970), (22940, 28269), (25110, 25826)]