20046560

素因数分解:

$2^5\times 5^1\times {\mathrm{349}}^1\times {\mathrm{359}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 47628000

約数和(自身を除く): 27581440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 349, 359, 698, 718, 1396, 1436, 1745, 1795, 2792, 2872, 3490, 3590, 5584, 5744, 6980, 7180, 11168, 11488, 13960, 14360, 27920, 28720, 55840, 57440, 125291, 250582, 501164, 626455, 1002328, 1252910, 2004656, 2505820, 4009312, 5011640, 10023280, 20046560]

約数ペア:

[(1, 20046560), (2, 10023280), (4, 5011640), (5, 4009312), (8, 2505820), (10, 2004656), (16, 1252910), (20, 1002328), (32, 626455), (40, 501164), (80, 250582), (160, 125291), (349, 57440), (359, 55840), (698, 28720), (718, 27920), (1396, 14360), (1436, 13960), (1745, 11488), (1795, 11168), (2792, 7180), (2872, 6980), (3490, 5744), (3590, 5584)]