258869375

素因数分解:

$5^4\times {\mathrm{31}}^2\times {\mathrm{431}}^1$

素因数の和:513

約数の個数: 30

約数和(自身を含む): 335030256

約数和(自身を除く): 76160881

約数列:

[1, 5, 25, 31, 125, 155, 431, 625, 775, 961, 2155, 3875, 4805, 10775, 13361, 19375, 24025, 53875, 66805, 120125, 269375, 334025, 414191, 600625, 1670125, 2070955, 8350625, 10354775, 51773875, 258869375]

約数ペア:

[(1, 258869375), (5, 51773875), (25, 10354775), (31, 8350625), (125, 2070955), (155, 1670125), (431, 600625), (625, 414191), (775, 334025), (961, 269375), (2155, 120125), (3875, 66805), (4805, 53875), (10775, 24025), (13361, 19375)]