9919375

素因数分解:

$5^4\times {\mathrm{59}}^1\times {\mathrm{269}}^1$

素因数の和:348

約数の個数: 20

約数和(自身を含む): 12652200

約数和(自身を除く): 2732825

約数列:

[1, 5, 25, 59, 125, 269, 295, 625, 1345, 1475, 6725, 7375, 15871, 33625, 36875, 79355, 168125, 396775, 1983875, 9919375]

約数ペア:

[(1, 9919375), (5, 1983875), (25, 396775), (59, 168125), (125, 79355), (269, 36875), (295, 33625), (625, 15871), (1345, 7375), (1475, 6725)]