18173560

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1901}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 41083200

約数和(自身を除く): 22909640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1901, 1912, 2390, 3802, 4780, 7604, 9505, 9560, 15208, 19010, 38020, 76040, 454339, 908678, 1817356, 2271695, 3634712, 4543390, 9086780, 18173560]

約数ペア:

[(1, 18173560), (2, 9086780), (4, 4543390), (5, 3634712), (8, 2271695), (10, 1817356), (20, 908678), (40, 454339), (239, 76040), (478, 38020), (956, 19010), (1195, 15208), (1901, 9560), (1912, 9505), (2390, 7604), (3802, 4780)]