31168640

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1571}}^1$

素因数の和:1621

約数の個数: 64

約数和(自身を含む): 76965120

約数和(自身を除く): 45796480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 310, 320, 496, 620, 640, 992, 1240, 1571, 1984, 2480, 3142, 3968, 4960, 6284, 7855, 9920, 12568, 15710, 19840, 25136, 31420, 48701, 50272, 62840, 97402, 100544, 125680, 194804, 201088, 243505, 251360, 389608, 487010, 502720, 779216, 974020, 1005440, 1558432, 1948040, 3116864, 3896080, 6233728, 7792160, 15584320, 31168640]

約数ペア:

[(1, 31168640), (2, 15584320), (4, 7792160), (5, 6233728), (8, 3896080), (10, 3116864), (16, 1948040), (20, 1558432), (31, 1005440), (32, 974020), (40, 779216), (62, 502720), (64, 487010), (80, 389608), (124, 251360), (128, 243505), (155, 201088), (160, 194804), (248, 125680), (310, 100544), (320, 97402), (496, 62840), (620, 50272), (640, 48701), (992, 31420), (1240, 25136), (1571, 19840), (1984, 15710), (2480, 12568), (3142, 9920), (3968, 7855), (4960, 6284)]