15558125

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:135

約数の個数: 40

約数和(自身を含む): 22192896

約数和(自身を除く): 6634771

約数列:

[1, 5, 11, 25, 31, 55, 73, 125, 155, 275, 341, 365, 625, 775, 803, 1375, 1705, 1825, 2263, 3875, 4015, 6875, 8525, 9125, 11315, 19375, 20075, 24893, 42625, 45625, 56575, 100375, 124465, 213125, 282875, 501875, 622325, 1414375, 3111625, 15558125]

約数ペア:

[(1, 15558125), (5, 3111625), (11, 1414375), (25, 622325), (31, 501875), (55, 282875), (73, 213125), (125, 124465), (155, 100375), (275, 56575), (341, 45625), (365, 42625), (625, 24893), (775, 20075), (803, 19375), (1375, 11315), (1705, 9125), (1825, 8525), (2263, 6875), (3875, 4015)]