85180720

素因数分解:

$2^4\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3929}}^1$

素因数の和:4213

約数の個数: 40

約数和(自身を含む): 198826560

約数和(自身を除く): 113645840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 271, 542, 1084, 1355, 2168, 2710, 3929, 4336, 5420, 7858, 10840, 15716, 19645, 21680, 31432, 39290, 62864, 78580, 157160, 314320, 1064759, 2129518, 4259036, 5323795, 8518072, 10647590, 17036144, 21295180, 42590360, 85180720]

約数ペア:

[(1, 85180720), (2, 42590360), (4, 21295180), (5, 17036144), (8, 10647590), (10, 8518072), (16, 5323795), (20, 4259036), (40, 2129518), (80, 1064759), (271, 314320), (542, 157160), (1084, 78580), (1355, 62864), (2168, 39290), (2710, 31432), (3929, 21680), (4336, 19645), (5420, 15716), (7858, 10840)]