123908680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{442531}}^1$

素因数の和:442549

約数の個数: 32

約数和(自身を含む): 318623040

約数和(自身を除く): 194714360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 442531, 885062, 1770124, 2212655, 3097717, 3540248, 4425310, 6195434, 8850620, 12390868, 15488585, 17701240, 24781736, 30977170, 61954340, 123908680]

約数ペア:

[(1, 123908680), (2, 61954340), (4, 30977170), (5, 24781736), (7, 17701240), (8, 15488585), (10, 12390868), (14, 8850620), (20, 6195434), (28, 4425310), (35, 3540248), (40, 3097717), (56, 2212655), (70, 1770124), (140, 885062), (280, 442531)]