20083960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2971}}^1$

素因数の和:3008

約数の個数: 48

約数和(自身を含む): 48948840

約数和(自身を除く): 28864880

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 1352, 1690, 2971, 3380, 5942, 6760, 11884, 14855, 23768, 29710, 38623, 59420, 77246, 118840, 154492, 193115, 308984, 386230, 502099, 772460, 1004198, 1544920, 2008396, 2510495, 4016792, 5020990, 10041980, 20083960]

約数ペア:

[(1, 20083960), (2, 10041980), (4, 5020990), (5, 4016792), (8, 2510495), (10, 2008396), (13, 1544920), (20, 1004198), (26, 772460), (40, 502099), (52, 386230), (65, 308984), (104, 193115), (130, 154492), (169, 118840), (260, 77246), (338, 59420), (520, 38623), (676, 29710), (845, 23768), (1352, 14855), (1690, 11884), (2971, 6760), (3380, 5942)]