18431680

素因数分解:

$2^6\times 5^1\times {\mathrm{239}}^1\times {\mathrm{241}}^1$

素因数の和:497

約数の個数: 56

約数和(自身を含む): 44256960

約数和(自身を除く): 25825280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 239, 241, 320, 478, 482, 956, 964, 1195, 1205, 1912, 1928, 2390, 2410, 3824, 3856, 4780, 4820, 7648, 7712, 9560, 9640, 15296, 15424, 19120, 19280, 38240, 38560, 57599, 76480, 77120, 115198, 230396, 287995, 460792, 575990, 921584, 1151980, 1843168, 2303960, 3686336, 4607920, 9215840, 18431680]

約数ペア:

[(1, 18431680), (2, 9215840), (4, 4607920), (5, 3686336), (8, 2303960), (10, 1843168), (16, 1151980), (20, 921584), (32, 575990), (40, 460792), (64, 287995), (80, 230396), (160, 115198), (239, 77120), (241, 76480), (320, 57599), (478, 38560), (482, 38240), (956, 19280), (964, 19120), (1195, 15424), (1205, 15296), (1912, 9640), (1928, 9560), (2390, 7712), (2410, 7648), (3824, 4820), (3856, 4780)]