18069320

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1$

素因数の和:498

約数の個数: 64

約数和(自身を含む): 43297200

約数和(自身を除く): 25227880

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 37, 40, 58, 74, 116, 145, 148, 185, 232, 290, 296, 370, 421, 580, 740, 842, 1073, 1160, 1480, 1684, 2105, 2146, 3368, 4210, 4292, 5365, 8420, 8584, 10730, 12209, 15577, 16840, 21460, 24418, 31154, 42920, 48836, 61045, 62308, 77885, 97672, 122090, 124616, 155770, 244180, 311540, 451733, 488360, 623080, 903466, 1806932, 2258665, 3613864, 4517330, 9034660, 18069320]

約数ペア:

[(1, 18069320), (2, 9034660), (4, 4517330), (5, 3613864), (8, 2258665), (10, 1806932), (20, 903466), (29, 623080), (37, 488360), (40, 451733), (58, 311540), (74, 244180), (116, 155770), (145, 124616), (148, 122090), (185, 97672), (232, 77885), (290, 62308), (296, 61045), (370, 48836), (421, 42920), (580, 31154), (740, 24418), (842, 21460), (1073, 16840), (1160, 15577), (1480, 12209), (1684, 10730), (2105, 8584), (2146, 8420), (3368, 5365), (4210, 4292)]