2199725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1$

素因数の和:461

約数の個数: 24

約数和(自身を含む): 3139680

約数和(自身を除く): 939955

約数列:

[1, 5, 11, 19, 25, 55, 95, 209, 275, 421, 475, 1045, 2105, 4631, 5225, 7999, 10525, 23155, 39995, 87989, 115775, 199975, 439945, 2199725]

約数ペア:

[(1, 2199725), (5, 439945), (11, 199975), (19, 115775), (25, 87989), (55, 39995), (95, 23155), (209, 10525), (275, 7999), (421, 5225), (475, 4631), (1045, 2105)]