15212840

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1373}}^1$

素因数の和:1661

約数の個数: 32

約数和(自身を含む): 34377480

約数和(自身を除く): 19164640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1373, 1385, 2216, 2746, 2770, 5492, 5540, 6865, 10984, 11080, 13730, 27460, 54920, 380321, 760642, 1521284, 1901605, 3042568, 3803210, 7606420, 15212840]

約数ペア:

[(1, 15212840), (2, 7606420), (4, 3803210), (5, 3042568), (8, 1901605), (10, 1521284), (20, 760642), (40, 380321), (277, 54920), (554, 27460), (1108, 13730), (1373, 11080), (1385, 10984), (2216, 6865), (2746, 5540), (2770, 5492)]