18167875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 25212096

約数和(自身を除く): 7044221

約数列:

[1, 5, 11, 25, 55, 73, 125, 181, 275, 365, 803, 905, 1375, 1825, 1991, 4015, 4525, 9125, 9955, 13213, 20075, 22625, 49775, 66065, 100375, 145343, 248875, 330325, 726715, 1651625, 3633575, 18167875]

約数ペア:

[(1, 18167875), (5, 3633575), (11, 1651625), (25, 726715), (55, 330325), (73, 248875), (125, 145343), (181, 100375), (275, 66065), (365, 49775), (803, 22625), (905, 20075), (1375, 13213), (1825, 9955), (1991, 9125), (4015, 4525)]