123648680

素因数分解:

$2^3\times 5^1\times {\mathrm{3091217}}^1$

素因数の和:3091228

約数の個数: 16

約数和(自身を含む): 278209620

約数和(自身を除く): 154560940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3091217, 6182434, 12364868, 15456085, 24729736, 30912170, 61824340, 123648680]

約数ペア:

[(1, 123648680), (2, 61824340), (4, 30912170), (5, 24729736), (8, 15456085), (10, 12364868), (20, 6182434), (40, 3091217)]