64543960

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{124123}}^1$

素因数の和:124147

約数の個数: 32

約数和(自身を含む): 156396240

約数和(自身を除く): 91852280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 124123, 248246, 496492, 620615, 992984, 1241230, 1613599, 2482460, 3227198, 4964920, 6454396, 8067995, 12908792, 16135990, 32271980, 64543960]

約数ペア:

[(1, 64543960), (2, 32271980), (4, 16135990), (5, 12908792), (8, 8067995), (10, 6454396), (13, 4964920), (20, 3227198), (26, 2482460), (40, 1613599), (52, 1241230), (65, 992984), (104, 620615), (130, 496492), (260, 248246), (520, 124123)]