18678804950

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{28736623}}^1$

素因数の和:28736648

約数の個数: 24

約数和(自身を含む): 37415084448

約数和(自身を除く): 18736279498

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 28736623, 57473246, 143683115, 287366230, 373576099, 718415575, 747152198, 1436831150, 1867880495, 3735760990, 9339402475, 18678804950]

約数ペア:

[(1, 18678804950), (2, 9339402475), (5, 3735760990), (10, 1867880495), (13, 1436831150), (25, 747152198), (26, 718415575), (50, 373576099), (65, 287366230), (130, 143683115), (325, 57473246), (650, 28736623)]