16643960

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1741}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 37627200

約数和(自身を除く): 20983240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1741, 1912, 2390, 3482, 4780, 6964, 8705, 9560, 13928, 17410, 34820, 69640, 416099, 832198, 1664396, 2080495, 3328792, 4160990, 8321980, 16643960]

約数ペア:

[(1, 16643960), (2, 8321980), (4, 4160990), (5, 3328792), (8, 2080495), (10, 1664396), (20, 832198), (40, 416099), (239, 69640), (478, 34820), (956, 17410), (1195, 13928), (1741, 9560), (1912, 8705), (2390, 6964), (3482, 4780)]