18000410

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{449}}^1$

素因数の和:686

約数の個数: 32

約数和(自身を含む): 34344000

約数和(自身を除く): 16343590

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 211, 422, 449, 898, 1055, 2110, 2245, 4009, 4490, 8018, 8531, 17062, 20045, 40090, 42655, 85310, 94739, 189478, 473695, 947390, 1800041, 3600082, 9000205, 18000410]

約数ペア:

[(1, 18000410), (2, 9000205), (5, 3600082), (10, 1800041), (19, 947390), (38, 473695), (95, 189478), (190, 94739), (211, 85310), (422, 42655), (449, 40090), (898, 20045), (1055, 17062), (2110, 8531), (2245, 8018), (4009, 4490)]