20097875

素因数分解:

$5^3\times 7^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:348

約数の個数: 32

約数和(自身を含む): 29073408

約数和(自身を除く): 8975533

約数列:

[1, 5, 7, 25, 35, 103, 125, 175, 223, 515, 721, 875, 1115, 1561, 2575, 3605, 5575, 7805, 12875, 18025, 22969, 27875, 39025, 90125, 114845, 160783, 195125, 574225, 803915, 2871125, 4019575, 20097875]

約数ペア:

[(1, 20097875), (5, 4019575), (7, 2871125), (25, 803915), (35, 574225), (103, 195125), (125, 160783), (175, 114845), (223, 90125), (515, 39025), (721, 27875), (875, 22969), (1115, 18025), (1561, 12875), (2575, 7805), (3605, 5575)]