13000625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:123

約数の個数: 40

約数和(自身を含む): 18594048

約数和(自身を除く): 5593423

約数列:

[1, 5, 11, 25, 31, 55, 61, 125, 155, 275, 305, 341, 625, 671, 775, 1375, 1525, 1705, 1891, 3355, 3875, 6875, 7625, 8525, 9455, 16775, 19375, 20801, 38125, 42625, 47275, 83875, 104005, 213125, 236375, 419375, 520025, 1181875, 2600125, 13000625]

約数ペア:

[(1, 13000625), (5, 2600125), (11, 1181875), (25, 520025), (31, 419375), (55, 236375), (61, 213125), (125, 104005), (155, 83875), (275, 47275), (305, 42625), (341, 38125), (625, 20801), (671, 19375), (775, 16775), (1375, 9455), (1525, 8525), (1705, 7625), (1891, 6875), (3355, 3875)]