19738875

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{4049}}^1$

素因数の和:4080

約数の個数: 32

約数和(自身を含む): 35380800

約数和(自身を除く): 15641925

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 125, 195, 325, 375, 975, 1625, 4049, 4875, 12147, 20245, 52637, 60735, 101225, 157911, 263185, 303675, 506125, 789555, 1315925, 1518375, 3947775, 6579625, 19738875]

約数ペア:

[(1, 19738875), (3, 6579625), (5, 3947775), (13, 1518375), (15, 1315925), (25, 789555), (39, 506125), (65, 303675), (75, 263185), (125, 157911), (195, 101225), (325, 60735), (375, 52637), (975, 20245), (1625, 12147), (4049, 4875)]