260020875

素因数分解:

$3^1\times 5^3\times {\mathrm{661}}^1\times {\mathrm{1049}}^1$

素因数の和:1728

約数の個数: 32

約数和(自身を含む): 433742400

約数和(自身を除く): 173721525

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 661, 1049, 1983, 3147, 3305, 5245, 9915, 15735, 16525, 26225, 49575, 78675, 82625, 131125, 247875, 393375, 693389, 2080167, 3466945, 10400835, 17334725, 52004175, 86673625, 260020875]

約数ペア:

[(1, 260020875), (3, 86673625), (5, 52004175), (15, 17334725), (25, 10400835), (75, 3466945), (125, 2080167), (375, 693389), (661, 393375), (1049, 247875), (1983, 131125), (3147, 82625), (3305, 78675), (5245, 49575), (9915, 26225), (15735, 16525)]