81035984

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{199}}^1\times {\mathrm{821}}^1$

素因数の和:1059

約数の個数: 40

約数和(自身を含む): 163084800

約数和(自身を除く): 82048816

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 199, 248, 398, 496, 796, 821, 1592, 1642, 3184, 3284, 6169, 6568, 12338, 13136, 24676, 25451, 49352, 50902, 98704, 101804, 163379, 203608, 326758, 407216, 653516, 1307032, 2614064, 5064749, 10129498, 20258996, 40517992, 81035984]

約数ペア:

[(1, 81035984), (2, 40517992), (4, 20258996), (8, 10129498), (16, 5064749), (31, 2614064), (62, 1307032), (124, 653516), (199, 407216), (248, 326758), (398, 203608), (496, 163379), (796, 101804), (821, 98704), (1592, 50902), (1642, 49352), (3184, 25451), (3284, 24676), (6169, 13136), (6568, 12338)]