180636985

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1$

素因数の和:573

約数の個数: 32

約数和(自身を含む): 236755872

約数和(自身を除く): 56118887

約数列:

[1, 5, 17, 53, 85, 101, 265, 397, 505, 901, 1717, 1985, 4505, 5353, 6749, 8585, 21041, 26765, 33745, 40097, 91001, 105205, 200485, 357697, 455005, 681649, 1788485, 2125141, 3408245, 10625705, 36127397, 180636985]

約数ペア:

[(1, 180636985), (5, 36127397), (17, 10625705), (53, 3408245), (85, 2125141), (101, 1788485), (265, 681649), (397, 455005), (505, 357697), (901, 200485), (1717, 105205), (1985, 91001), (4505, 40097), (5353, 33745), (6749, 26765), (8585, 21041)]