81235360

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7151}}^1$

素因数の和:7237

約数の個数: 48

約数和(自身を含む): 194648832

約数和(自身を除く): 113413472

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 2272, 2840, 5680, 7151, 11360, 14302, 28604, 35755, 57208, 71510, 114416, 143020, 228832, 286040, 507721, 572080, 1015442, 1144160, 2030884, 2538605, 4061768, 5077210, 8123536, 10154420, 16247072, 20308840, 40617680, 81235360]

約数ペア:

[(1, 81235360), (2, 40617680), (4, 20308840), (5, 16247072), (8, 10154420), (10, 8123536), (16, 5077210), (20, 4061768), (32, 2538605), (40, 2030884), (71, 1144160), (80, 1015442), (142, 572080), (160, 507721), (284, 286040), (355, 228832), (568, 143020), (710, 114416), (1136, 71510), (1420, 57208), (2272, 35755), (2840, 28604), (5680, 14302), (7151, 11360)]