18568280

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{6359}}^1$

素因数の和:6443

約数の個数: 32

約数和(自身を含む): 42357600

約数和(自身を除く): 23789320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 6359, 12718, 25436, 31795, 50872, 63590, 127180, 254360, 464207, 928414, 1856828, 2321035, 3713656, 4642070, 9284140, 18568280]

約数ペア:

[(1, 18568280), (2, 9284140), (4, 4642070), (5, 3713656), (8, 2321035), (10, 1856828), (20, 928414), (40, 464207), (73, 254360), (146, 127180), (292, 63590), (365, 50872), (584, 31795), (730, 25436), (1460, 12718), (2920, 6359)]