17938120

素因数分解:

$2^3\times 5^1\times {\mathrm{223}}^1\times {\mathrm{2011}}^1$

素因数の和:2245

約数の個数: 32

約数和(自身を含む): 40561920

約数和(自身を除く): 22623800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 223, 446, 892, 1115, 1784, 2011, 2230, 4022, 4460, 8044, 8920, 10055, 16088, 20110, 40220, 80440, 448453, 896906, 1793812, 2242265, 3587624, 4484530, 8969060, 17938120]

約数ペア:

[(1, 17938120), (2, 8969060), (4, 4484530), (5, 3587624), (8, 2242265), (10, 1793812), (20, 896906), (40, 448453), (223, 80440), (446, 40220), (892, 20110), (1115, 16088), (1784, 10055), (2011, 8920), (2230, 8044), (4022, 4460)]