212960725

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{397}}^1\times {\mathrm{499}}^1$

素因数の和:949

約数の個数: 24

約数和(自身を含む): 271436000

約数和(自身を除く): 58475275

約数列:

[1, 5, 25, 43, 215, 397, 499, 1075, 1985, 2495, 9925, 12475, 17071, 21457, 85355, 107285, 198103, 426775, 536425, 990515, 4952575, 8518429, 42592145, 212960725]

約数ペア:

[(1, 212960725), (5, 42592145), (25, 8518429), (43, 4952575), (215, 990515), (397, 536425), (499, 426775), (1075, 198103), (1985, 107285), (2495, 85355), (9925, 21457), (12475, 17071)]