18591520

素因数分解:

$2^5\times 5^1\times {\mathrm{131}}^1\times {\mathrm{887}}^1$

素因数の和:1033

約数の個数: 48

約数和(自身を含む): 44307648

約数和(自身を除く): 25716128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 131, 160, 262, 524, 655, 887, 1048, 1310, 1774, 2096, 2620, 3548, 4192, 4435, 5240, 7096, 8870, 10480, 14192, 17740, 20960, 28384, 35480, 70960, 116197, 141920, 232394, 464788, 580985, 929576, 1161970, 1859152, 2323940, 3718304, 4647880, 9295760, 18591520]

約数ペア:

[(1, 18591520), (2, 9295760), (4, 4647880), (5, 3718304), (8, 2323940), (10, 1859152), (16, 1161970), (20, 929576), (32, 580985), (40, 464788), (80, 232394), (131, 141920), (160, 116197), (262, 70960), (524, 35480), (655, 28384), (887, 20960), (1048, 17740), (1310, 14192), (1774, 10480), (2096, 8870), (2620, 7096), (3548, 5240), (4192, 4435)]