61244375

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:189

約数の個数: 40

約数和(自身を含む): 82473600

約数和(自身を除く): 21229225

約数列:

[1, 5, 25, 29, 31, 109, 125, 145, 155, 545, 625, 725, 775, 899, 2725, 3161, 3379, 3625, 3875, 4495, 13625, 15805, 16895, 18125, 19375, 22475, 68125, 79025, 84475, 97991, 112375, 395125, 422375, 489955, 561875, 1975625, 2111875, 2449775, 12248875, 61244375]

約数ペア:

[(1, 61244375), (5, 12248875), (25, 2449775), (29, 2111875), (31, 1975625), (109, 561875), (125, 489955), (145, 422375), (155, 395125), (545, 112375), (625, 97991), (725, 84475), (775, 79025), (899, 68125), (2725, 22475), (3161, 19375), (3379, 18125), (3625, 16895), (3875, 15805), (4495, 13625)]