123664040

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{20749}}^1$

素因数の和:20909

約数の個数: 32

約数和(自身を含む): 280125000

約数和(自身を除く): 156460960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 5960, 20749, 41498, 82996, 103745, 165992, 207490, 414980, 829960, 3091601, 6183202, 12366404, 15458005, 24732808, 30916010, 61832020, 123664040]

約数ペア:

[(1, 123664040), (2, 61832020), (4, 30916010), (5, 24732808), (8, 15458005), (10, 12366404), (20, 6183202), (40, 3091601), (149, 829960), (298, 414980), (596, 207490), (745, 165992), (1192, 103745), (1490, 82996), (2980, 41498), (5960, 20749)]