18028980

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:411

約数の個数: 120

約数和(自身を含む): 58544640

約数和(自身を除く): 40515660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 31, 36, 45, 54, 60, 62, 81, 90, 93, 108, 124, 135, 155, 162, 180, 186, 270, 279, 310, 324, 359, 372, 405, 465, 540, 558, 620, 718, 810, 837, 930, 1077, 1116, 1395, 1436, 1620, 1674, 1795, 1860, 2154, 2511, 2790, 3231, 3348, 3590, 4185, 4308, 5022, 5385, 5580, 6462, 7180, 8370, 9693, 10044, 10770, 11129, 12555, 12924, 16155, 16740, 19386, 21540, 22258, 25110, 29079, 32310, 33387, 38772, 44516, 48465, 50220, 55645, 58158, 64620, 66774, 96930, 100161, 111290, 116316, 133548, 145395, 166935, 193860, 200322, 222580, 290790, 300483, 333870, 400644, 500805, 581580, 600966, 667740, 901449, 1001610, 1201932, 1502415, 1802898, 2003220, 3004830, 3605796, 4507245, 6009660, 9014490, 18028980]

約数ペア:

[(1, 18028980), (2, 9014490), (3, 6009660), (4, 4507245), (5, 3605796), (6, 3004830), (9, 2003220), (10, 1802898), (12, 1502415), (15, 1201932), (18, 1001610), (20, 901449), (27, 667740), (30, 600966), (31, 581580), (36, 500805), (45, 400644), (54, 333870), (60, 300483), (62, 290790), (81, 222580), (90, 200322), (93, 193860), (108, 166935), (124, 145395), (135, 133548), (155, 116316), (162, 111290), (180, 100161), (186, 96930), (270, 66774), (279, 64620), (310, 58158), (324, 55645), (359, 50220), (372, 48465), (405, 44516), (465, 38772), (540, 33387), (558, 32310), (620, 29079), (718, 25110), (810, 22258), (837, 21540), (930, 19386), (1077, 16740), (1116, 16155), (1395, 12924), (1436, 12555), (1620, 11129), (1674, 10770), (1795, 10044), (1860, 9693), (2154, 8370), (2511, 7180), (2790, 6462), (3231, 5580), (3348, 5385), (3590, 5022), (4185, 4308)]