20750560

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2447}}^1$

素因数の和:2515

約数の個数: 48

約数和(自身を含む): 49968576

約数和(自身を除く): 29218016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2120, 2447, 4240, 4894, 8480, 9788, 12235, 19576, 24470, 39152, 48940, 78304, 97880, 129691, 195760, 259382, 391520, 518764, 648455, 1037528, 1296910, 2075056, 2593820, 4150112, 5187640, 10375280, 20750560]

約数ペア:

[(1, 20750560), (2, 10375280), (4, 5187640), (5, 4150112), (8, 2593820), (10, 2075056), (16, 1296910), (20, 1037528), (32, 648455), (40, 518764), (53, 391520), (80, 259382), (106, 195760), (160, 129691), (212, 97880), (265, 78304), (424, 48940), (530, 39152), (848, 24470), (1060, 19576), (1696, 12235), (2120, 9788), (2447, 8480), (4240, 4894)]