123465680

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{118717}}^1$

素因数の和:118743

約数の個数: 40

約数和(自身を含む): 309141672

約数和(自身を除く): 185675992

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 118717, 237434, 474868, 593585, 949736, 1187170, 1543321, 1899472, 2374340, 3086642, 4748680, 6173284, 7716605, 9497360, 12346568, 15433210, 24693136, 30866420, 61732840, 123465680]

約数ペア:

[(1, 123465680), (2, 61732840), (4, 30866420), (5, 24693136), (8, 15433210), (10, 12346568), (13, 9497360), (16, 7716605), (20, 6173284), (26, 4748680), (40, 3086642), (52, 2374340), (65, 1899472), (80, 1543321), (104, 1187170), (130, 949736), (208, 593585), (260, 474868), (520, 237434), (1040, 118717)]