64990125

素因数分解:

$3^2\times 5^3\times {\mathrm{41}}^1\times {\mathrm{1409}}^1$

素因数の和:1471

約数の個数: 48

約数和(自身を含む): 120098160

約数和(自身を除く): 55108035

約数列:

[1, 3, 5, 9, 15, 25, 41, 45, 75, 123, 125, 205, 225, 369, 375, 615, 1025, 1125, 1409, 1845, 3075, 4227, 5125, 7045, 9225, 12681, 15375, 21135, 35225, 46125, 57769, 63405, 105675, 173307, 176125, 288845, 317025, 519921, 528375, 866535, 1444225, 1585125, 2599605, 4332675, 7221125, 12998025, 21663375, 64990125]

約数ペア:

[(1, 64990125), (3, 21663375), (5, 12998025), (9, 7221125), (15, 4332675), (25, 2599605), (41, 1585125), (45, 1444225), (75, 866535), (123, 528375), (125, 519921), (205, 317025), (225, 288845), (369, 176125), (375, 173307), (615, 105675), (1025, 63405), (1125, 57769), (1409, 46125), (1845, 35225), (3075, 21135), (4227, 15375), (5125, 12681), (7045, 9225)]