208880375

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{2081}}^1$

素因数の和:2180

約数の個数: 32

約数和(自身を含む): 288415296

約数和(自身を除く): 79534921

約数列:

[1, 5, 11, 25, 55, 73, 125, 275, 365, 803, 1375, 1825, 2081, 4015, 9125, 10405, 20075, 22891, 52025, 100375, 114455, 151913, 260125, 572275, 759565, 1671043, 2861375, 3797825, 8355215, 18989125, 41776075, 208880375]

約数ペア:

[(1, 208880375), (5, 41776075), (11, 18989125), (25, 8355215), (55, 3797825), (73, 2861375), (125, 1671043), (275, 759565), (365, 572275), (803, 260125), (1375, 151913), (1825, 114455), (2081, 100375), (4015, 52025), (9125, 22891), (10405, 20075)]