87661340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{1399}}^1$

素因数の和:1662

約数の個数: 48

約数和(自身を含む): 199214400

約数和(自身を除く): 111553060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 241, 260, 482, 964, 1205, 1399, 2410, 2798, 3133, 4820, 5596, 6266, 6995, 12532, 13990, 15665, 18187, 27980, 31330, 36374, 62660, 72748, 90935, 181870, 337159, 363740, 674318, 1348636, 1685795, 3371590, 4383067, 6743180, 8766134, 17532268, 21915335, 43830670, 87661340]

約数ペア:

[(1, 87661340), (2, 43830670), (4, 21915335), (5, 17532268), (10, 8766134), (13, 6743180), (20, 4383067), (26, 3371590), (52, 1685795), (65, 1348636), (130, 674318), (241, 363740), (260, 337159), (482, 181870), (964, 90935), (1205, 72748), (1399, 62660), (2410, 36374), (2798, 31330), (3133, 27980), (4820, 18187), (5596, 15665), (6266, 13990), (6995, 12532)]