127916816

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{420779}}^1$

素因数の和:420806

約数の個数: 20

約数和(自身を含む): 260883600

約数和(自身を除く): 132966784

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 420779, 841558, 1683116, 3366232, 6732464, 7994801, 15989602, 31979204, 63958408, 127916816]

約数ペア:

[(1, 127916816), (2, 63958408), (4, 31979204), (8, 15989602), (16, 7994801), (19, 6732464), (38, 3366232), (76, 1683116), (152, 841558), (304, 420779)]