2490380

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{521}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 5261760

約数和(自身を除く): 2771380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 521, 956, 1042, 1195, 2084, 2390, 2605, 4780, 5210, 10420, 124519, 249038, 498076, 622595, 1245190, 2490380]

約数ペア:

[(1, 2490380), (2, 1245190), (4, 622595), (5, 498076), (10, 249038), (20, 124519), (239, 10420), (478, 5210), (521, 4780), (956, 2605), (1042, 2390), (1195, 2084)]