31229680

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{22963}}^1$

素因数の和:22993

約数の個数: 40

約数和(自身を含む): 76883472

約数和(自身を除く): 45653792

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 22963, 45926, 91852, 114815, 183704, 229630, 367408, 390371, 459260, 780742, 918520, 1561484, 1837040, 1951855, 3122968, 3903710, 6245936, 7807420, 15614840, 31229680]

約数ペア:

[(1, 31229680), (2, 15614840), (4, 7807420), (5, 6245936), (8, 3903710), (10, 3122968), (16, 1951855), (17, 1837040), (20, 1561484), (34, 918520), (40, 780742), (68, 459260), (80, 390371), (85, 367408), (136, 229630), (170, 183704), (272, 114815), (340, 91852), (680, 45926), (1360, 22963)]