15917740

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{223}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 34771968

約数和(自身を除く): 18854228

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 223, 332, 415, 430, 446, 830, 860, 892, 1115, 1660, 2230, 3569, 4460, 7138, 9589, 14276, 17845, 18509, 19178, 35690, 37018, 38356, 47945, 71380, 74036, 92545, 95890, 185090, 191780, 370180, 795887, 1591774, 3183548, 3979435, 7958870, 15917740]

約数ペア:

[(1, 15917740), (2, 7958870), (4, 3979435), (5, 3183548), (10, 1591774), (20, 795887), (43, 370180), (83, 191780), (86, 185090), (166, 95890), (172, 92545), (215, 74036), (223, 71380), (332, 47945), (415, 38356), (430, 37018), (446, 35690), (830, 19178), (860, 18509), (892, 17845), (1115, 14276), (1660, 9589), (2230, 7138), (3569, 4460)]