18650320

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{227}}^1$

素因数の和:332

約数の個数: 80

約数和(自身を含む): 47496960

約数和(自身を除く): 28846640

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 79, 80, 104, 130, 158, 208, 227, 260, 316, 395, 454, 520, 632, 790, 908, 1027, 1040, 1135, 1264, 1580, 1816, 2054, 2270, 2951, 3160, 3632, 4108, 4540, 5135, 5902, 6320, 8216, 9080, 10270, 11804, 14755, 16432, 17933, 18160, 20540, 23608, 29510, 35866, 41080, 47216, 59020, 71732, 82160, 89665, 118040, 143464, 179330, 233129, 236080, 286928, 358660, 466258, 717320, 932516, 1165645, 1434640, 1865032, 2331290, 3730064, 4662580, 9325160, 18650320]

約数ペア:

[(1, 18650320), (2, 9325160), (4, 4662580), (5, 3730064), (8, 2331290), (10, 1865032), (13, 1434640), (16, 1165645), (20, 932516), (26, 717320), (40, 466258), (52, 358660), (65, 286928), (79, 236080), (80, 233129), (104, 179330), (130, 143464), (158, 118040), (208, 89665), (227, 82160), (260, 71732), (316, 59020), (395, 47216), (454, 41080), (520, 35866), (632, 29510), (790, 23608), (908, 20540), (1027, 18160), (1040, 17933), (1135, 16432), (1264, 14755), (1580, 11804), (1816, 10270), (2054, 9080), (2270, 8216), (2951, 6320), (3160, 5902), (3632, 5135), (4108, 4540)]