20802471950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2461831}}^1$

素因数の和:2461869

約数の個数: 36

約数和(自身を含む): 41897918808

約数和(自身を除く): 21095446858

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 4225, 8450, 2461831, 4923662, 12309155, 24618310, 32003803, 61545775, 64007606, 123091550, 160019015, 320038030, 416049439, 800095075, 832098878, 1600190150, 2080247195, 4160494390, 10401235975, 20802471950]

約数ペア:

[(1, 20802471950), (2, 10401235975), (5, 4160494390), (10, 2080247195), (13, 1600190150), (25, 832098878), (26, 800095075), (50, 416049439), (65, 320038030), (130, 160019015), (169, 123091550), (325, 64007606), (338, 61545775), (650, 32003803), (845, 24618310), (1690, 12309155), (4225, 4923662), (8450, 2461831)]