16880840

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{3323}}^1$

素因数の和:3461

約数の個数: 32

約数和(自身を含む): 38292480

約数和(自身を除く): 21411640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 3323, 5080, 6646, 13292, 16615, 26584, 33230, 66460, 132920, 422021, 844042, 1688084, 2110105, 3376168, 4220210, 8440420, 16880840]

約数ペア:

[(1, 16880840), (2, 8440420), (4, 4220210), (5, 3376168), (8, 2110105), (10, 1688084), (20, 844042), (40, 422021), (127, 132920), (254, 66460), (508, 33230), (635, 26584), (1016, 16615), (1270, 13292), (2540, 6646), (3323, 5080)]