2018956840

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1628191}}^1$

素因数の和:1628233

約数の個数: 32

約数和(自身を含む): 4689192960

約数和(自身を除く): 2670236120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1628191, 3256382, 6512764, 8140955, 13025528, 16281910, 32563820, 50473921, 65127640, 100947842, 201895684, 252369605, 403791368, 504739210, 1009478420, 2018956840]

約数ペア:

[(1, 2018956840), (2, 1009478420), (4, 504739210), (5, 403791368), (8, 252369605), (10, 201895684), (20, 100947842), (31, 65127640), (40, 50473921), (62, 32563820), (124, 16281910), (155, 13025528), (248, 8140955), (310, 6512764), (620, 3256382), (1240, 1628191)]