86640880

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{13709}}^1$

素因数の和:13801

約数の個数: 40

約数和(自身を含む): 204004800

約数和(自身を除く): 117363920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 13709, 27418, 54836, 68545, 109672, 137090, 219344, 274180, 548360, 1083011, 1096720, 2166022, 4332044, 5415055, 8664088, 10830110, 17328176, 21660220, 43320440, 86640880]

約数ペア:

[(1, 86640880), (2, 43320440), (4, 21660220), (5, 17328176), (8, 10830110), (10, 8664088), (16, 5415055), (20, 4332044), (40, 2166022), (79, 1096720), (80, 1083011), (158, 548360), (316, 274180), (395, 219344), (632, 137090), (790, 109672), (1264, 68545), (1580, 54836), (3160, 27418), (6320, 13709)]