28724220

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:194

約数の個数: 240

約数和(自身を含む): 109771200

約数和(自身を除く): 81046980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 17, 18, 20, 21, 27, 28, 30, 34, 35, 36, 42, 45, 51, 54, 60, 63, 68, 70, 81, 84, 85, 90, 102, 105, 108, 119, 126, 135, 140, 149, 153, 162, 170, 180, 189, 204, 210, 238, 252, 255, 270, 298, 306, 315, 324, 340, 357, 378, 405, 420, 447, 459, 476, 510, 540, 567, 595, 596, 612, 630, 714, 745, 756, 765, 810, 894, 918, 945, 1020, 1043, 1071, 1134, 1190, 1260, 1341, 1377, 1428, 1490, 1530, 1620, 1785, 1788, 1836, 1890, 2086, 2142, 2235, 2268, 2295, 2380, 2533, 2682, 2754, 2835, 2980, 3060, 3129, 3213, 3570, 3780, 4023, 4172, 4284, 4470, 4590, 5066, 5215, 5355, 5364, 5508, 5670, 6258, 6426, 6705, 6885, 7140, 7599, 8046, 8940, 9180, 9387, 9639, 10132, 10430, 10710, 11340, 12069, 12516, 12665, 12852, 13410, 13770, 15198, 15645, 16065, 16092, 17731, 18774, 19278, 20115, 20860, 21420, 22797, 24138, 25330, 26820, 27540, 28161, 30396, 31290, 32130, 35462, 37548, 37995, 38556, 40230, 45594, 46935, 48195, 48276, 50660, 53193, 56322, 60345, 62580, 64260, 68391, 70924, 75990, 80460, 84483, 88655, 91188, 93870, 96390, 106386, 112644, 113985, 120690, 136782, 140805, 151980, 159579, 168966, 177310, 187740, 192780, 205173, 212772, 227970, 241380, 265965, 273564, 281610, 319158, 337932, 341955, 354620, 410346, 422415, 455940, 478737, 531930, 563220, 638316, 683910, 797895, 820692, 844830, 957474, 1025865, 1063860, 1367820, 1436211, 1595790, 1689660, 1914948, 2051730, 2393685, 2872422, 3191580, 4103460, 4787370, 5744844, 7181055, 9574740, 14362110, 28724220]

約数ペア:

[(1, 28724220), (2, 14362110), (3, 9574740), (4, 7181055), (5, 5744844), (6, 4787370), (7, 4103460), (9, 3191580), (10, 2872422), (12, 2393685), (14, 2051730), (15, 1914948), (17, 1689660), (18, 1595790), (20, 1436211), (21, 1367820), (27, 1063860), (28, 1025865), (30, 957474), (34, 844830), (35, 820692), (36, 797895), (42, 683910), (45, 638316), (51, 563220), (54, 531930), (60, 478737), (63, 455940), (68, 422415), (70, 410346), (81, 354620), (84, 341955), (85, 337932), (90, 319158), (102, 281610), (105, 273564), (108, 265965), (119, 241380), (126, 227970), (135, 212772), (140, 205173), (149, 192780), (153, 187740), (162, 177310), (170, 168966), (180, 159579), (189, 151980), (204, 140805), (210, 136782), (238, 120690), (252, 113985), (255, 112644), (270, 106386), (298, 96390), (306, 93870), (315, 91188), (324, 88655), (340, 84483), (357, 80460), (378, 75990), (405, 70924), (420, 68391), (447, 64260), (459, 62580), (476, 60345), (510, 56322), (540, 53193), (567, 50660), (595, 48276), (596, 48195), (612, 46935), (630, 45594), (714, 40230), (745, 38556), (756, 37995), (765, 37548), (810, 35462), (894, 32130), (918, 31290), (945, 30396), (1020, 28161), (1043, 27540), (1071, 26820), (1134, 25330), (1190, 24138), (1260, 22797), (1341, 21420), (1377, 20860), (1428, 20115), (1490, 19278), (1530, 18774), (1620, 17731), (1785, 16092), (1788, 16065), (1836, 15645), (1890, 15198), (2086, 13770), (2142, 13410), (2235, 12852), (2268, 12665), (2295, 12516), (2380, 12069), (2533, 11340), (2682, 10710), (2754, 10430), (2835, 10132), (2980, 9639), (3060, 9387), (3129, 9180), (3213, 8940), (3570, 8046), (3780, 7599), (4023, 7140), (4172, 6885), (4284, 6705), (4470, 6426), (4590, 6258), (5066, 5670), (5215, 5508), (5355, 5364)]