28742725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5501}}^1$

素因数の和:5541

約数の個数: 24

約数和(自身を含む): 40934880

約数和(自身を除く): 12192155

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 475, 1045, 5225, 5501, 27505, 60511, 104519, 137525, 302555, 522595, 1149709, 1512775, 2612975, 5748545, 28742725]

約数ペア:

[(1, 28742725), (5, 5748545), (11, 2612975), (19, 1512775), (25, 1149709), (55, 522595), (95, 302555), (209, 137525), (275, 104519), (475, 60511), (1045, 27505), (5225, 5501)]