985660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:262

約数の個数: 48

約数和(自身を含む): 2370816

約数和(自身を除く): 1385156

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 223, 260, 340, 442, 446, 884, 892, 1105, 1115, 2210, 2230, 2899, 3791, 4420, 4460, 5798, 7582, 11596, 14495, 15164, 18955, 28990, 37910, 49283, 57980, 75820, 98566, 197132, 246415, 492830, 985660]

約数ペア:

[(1, 985660), (2, 492830), (4, 246415), (5, 197132), (10, 98566), (13, 75820), (17, 57980), (20, 49283), (26, 37910), (34, 28990), (52, 18955), (65, 15164), (68, 14495), (85, 11596), (130, 7582), (170, 5798), (221, 4460), (223, 4420), (260, 3791), (340, 2899), (442, 2230), (446, 2210), (884, 1115), (892, 1105)]