123679640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{441713}}^1$

素因数の和:441731

約数の個数: 32

約数和(自身を含む): 318034080

約数和(自身を除く): 194354440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 441713, 883426, 1766852, 2208565, 3091991, 3533704, 4417130, 6183982, 8834260, 12367964, 15459955, 17668520, 24735928, 30919910, 61839820, 123679640]

約数ペア:

[(1, 123679640), (2, 61839820), (4, 30919910), (5, 24735928), (7, 17668520), (8, 15459955), (10, 12367964), (14, 8834260), (20, 6183982), (28, 4417130), (35, 3533704), (40, 3091991), (56, 2208565), (70, 1766852), (140, 883426), (280, 441713)]