87040840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{41057}}^1$

素因数の和:41121

約数の個数: 32

約数和(自身を含む): 199541880

約数和(自身を除く): 112501040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 41057, 82114, 164228, 205285, 328456, 410570, 821140, 1642280, 2176021, 4352042, 8704084, 10880105, 17408168, 21760210, 43520420, 87040840]

約数ペア:

[(1, 87040840), (2, 43520420), (4, 21760210), (5, 17408168), (8, 10880105), (10, 8704084), (20, 4352042), (40, 2176021), (53, 1642280), (106, 821140), (212, 410570), (265, 328456), (424, 205285), (530, 164228), (1060, 82114), (2120, 41057)]