18087680

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1087}}^1$

素因数の和:1121

約数の個数: 72

約数和(自身を含む): 46701312

約数和(自身を除く): 28613632

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1087, 1280, 1664, 2080, 2174, 3328, 4160, 4348, 5435, 8320, 8696, 10870, 14131, 16640, 17392, 21740, 28262, 34784, 43480, 56524, 69568, 70655, 86960, 113048, 139136, 141310, 173920, 226096, 278272, 282620, 347840, 452192, 565240, 695680, 904384, 1130480, 1391360, 1808768, 2260960, 3617536, 4521920, 9043840, 18087680]

約数ペア:

[(1, 18087680), (2, 9043840), (4, 4521920), (5, 3617536), (8, 2260960), (10, 1808768), (13, 1391360), (16, 1130480), (20, 904384), (26, 695680), (32, 565240), (40, 452192), (52, 347840), (64, 282620), (65, 278272), (80, 226096), (104, 173920), (128, 141310), (130, 139136), (160, 113048), (208, 86960), (256, 70655), (260, 69568), (320, 56524), (416, 43480), (520, 34784), (640, 28262), (832, 21740), (1040, 17392), (1087, 16640), (1280, 14131), (1664, 10870), (2080, 8696), (2174, 8320), (3328, 5435), (4160, 4348)]