7139275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1$

素因数の和:2031

約数の個数: 24

約数和(自身を含む): 10405584

約数和(自身を除く): 3266309

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 1997, 3575, 9985, 21967, 25961, 49925, 109835, 129805, 285571, 549175, 649025, 1427855, 7139275]

約数ペア:

[(1, 7139275), (5, 1427855), (11, 649025), (13, 549175), (25, 285571), (55, 129805), (65, 109835), (143, 49925), (275, 25961), (325, 21967), (715, 9985), (1997, 3575)]