248453375

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{661}}^1$

素因数の和:804

約数の個数: 32

約数和(自身を含む): 323860992

約数和(自身を除く): 75407617

約数列:

[1, 5, 25, 31, 97, 125, 155, 485, 661, 775, 2425, 3007, 3305, 3875, 12125, 15035, 16525, 20491, 64117, 75175, 82625, 102455, 320585, 375875, 512275, 1602925, 1987627, 2561375, 8014625, 9938135, 49690675, 248453375]

約数ペア:

[(1, 248453375), (5, 49690675), (25, 9938135), (31, 8014625), (97, 2561375), (125, 1987627), (155, 1602925), (485, 512275), (661, 375875), (775, 320585), (2425, 102455), (3007, 82625), (3305, 75175), (3875, 64117), (12125, 20491), (15035, 16525)]