18073840

素因数分解:

$2^4\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1439}}^1$

素因数の和:1609

約数の個数: 40

約数和(自身を含む): 42318720

約数和(自身を除く): 24244880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 157, 314, 628, 785, 1256, 1439, 1570, 2512, 2878, 3140, 5756, 6280, 7195, 11512, 12560, 14390, 23024, 28780, 57560, 115120, 225923, 451846, 903692, 1129615, 1807384, 2259230, 3614768, 4518460, 9036920, 18073840]

約数ペア:

[(1, 18073840), (2, 9036920), (4, 4518460), (5, 3614768), (8, 2259230), (10, 1807384), (16, 1129615), (20, 903692), (40, 451846), (80, 225923), (157, 115120), (314, 57560), (628, 28780), (785, 23024), (1256, 14390), (1439, 12560), (1570, 11512), (2512, 7195), (2878, 6280), (3140, 5756)]