85646840

素因数分解:

$2^3\times 5^1\times {\mathrm{271}}^1\times {\mathrm{7901}}^1$

素因数の和:8183

約数の個数: 32

約数和(自身を含む): 193440960

約数和(自身を除く): 107794120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 271, 542, 1084, 1355, 2168, 2710, 5420, 7901, 10840, 15802, 31604, 39505, 63208, 79010, 158020, 316040, 2141171, 4282342, 8564684, 10705855, 17129368, 21411710, 42823420, 85646840]

約数ペア:

[(1, 85646840), (2, 42823420), (4, 21411710), (5, 17129368), (8, 10705855), (10, 8564684), (20, 4282342), (40, 2141171), (271, 316040), (542, 158020), (1084, 79010), (1355, 63208), (2168, 39505), (2710, 31604), (5420, 15802), (7901, 10840)]