1868124380

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{390821}}^1$

素因数の和:391069

約数の個数: 24

約数和(自身を含む): 3939485760

約数和(自身を除く): 2071361380

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4780, 390821, 781642, 1563284, 1954105, 3908210, 7816420, 93406219, 186812438, 373624876, 467031095, 934062190, 1868124380]

約数ペア:

[(1, 1868124380), (2, 934062190), (4, 467031095), (5, 373624876), (10, 186812438), (20, 93406219), (239, 7816420), (478, 3908210), (956, 1954105), (1195, 1563284), (2390, 781642), (4780, 390821)]