74181640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{142657}}^1$

素因数の和:142681

約数の個数: 32

約数和(自身を含む): 179749080

約数和(自身を除く): 105567440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 142657, 285314, 570628, 713285, 1141256, 1426570, 1854541, 2853140, 3709082, 5706280, 7418164, 9272705, 14836328, 18545410, 37090820, 74181640]

約数ペア:

[(1, 74181640), (2, 37090820), (4, 18545410), (5, 14836328), (8, 9272705), (10, 7418164), (13, 5706280), (20, 3709082), (26, 2853140), (40, 1854541), (52, 1426570), (65, 1141256), (104, 713285), (130, 570628), (260, 285314), (520, 142657)]