639804525

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{6841}}^1$

素因数の和:6926

約数の個数: 48

約数和(自身を含む): 1119898560

約数和(自身を除く): 480094035

約数列:

[1, 3, 5, 15, 25, 29, 43, 75, 87, 129, 145, 215, 435, 645, 725, 1075, 1247, 2175, 3225, 3741, 6235, 6841, 18705, 20523, 31175, 34205, 93525, 102615, 171025, 198389, 294163, 513075, 595167, 882489, 991945, 1470815, 2975835, 4412445, 4959725, 7354075, 8530727, 14879175, 22062225, 25592181, 42653635, 127960905, 213268175, 639804525]

約数ペア:

[(1, 639804525), (3, 213268175), (5, 127960905), (15, 42653635), (25, 25592181), (29, 22062225), (43, 14879175), (75, 8530727), (87, 7354075), (129, 4959725), (145, 4412445), (215, 2975835), (435, 1470815), (645, 991945), (725, 882489), (1075, 595167), (1247, 513075), (2175, 294163), (3225, 198389), (3741, 171025), (6235, 102615), (6841, 93525), (18705, 34205), (20523, 31175)]