215685080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{414779}}^1$

素因数の和:414803

約数の個数: 32

約数和(自身を含む): 522622800

約数和(自身を除く): 306937720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 414779, 829558, 1659116, 2073895, 3318232, 4147790, 5392127, 8295580, 10784254, 16591160, 21568508, 26960635, 43137016, 53921270, 107842540, 215685080]

約数ペア:

[(1, 215685080), (2, 107842540), (4, 53921270), (5, 43137016), (8, 26960635), (10, 21568508), (13, 16591160), (20, 10784254), (26, 8295580), (40, 5392127), (52, 4147790), (65, 3318232), (104, 2073895), (130, 1659116), (260, 829558), (520, 414779)]