291212125

素因数分解:

$5^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3187}}^1$

素因数の和:3262

約数の個数: 32

約数和(自身を含む): 393883776

約数和(自身を除く): 102671651

約数列:

[1, 5, 17, 25, 43, 85, 125, 215, 425, 731, 1075, 2125, 3187, 3655, 5375, 15935, 18275, 54179, 79675, 91375, 137041, 270895, 398375, 685205, 1354475, 2329697, 3426025, 6772375, 11648485, 17130125, 58242425, 291212125]

約数ペア:

[(1, 291212125), (5, 58242425), (17, 17130125), (25, 11648485), (43, 6772375), (85, 3426025), (125, 2329697), (215, 1354475), (425, 685205), (731, 398375), (1075, 270895), (2125, 137041), (3187, 91375), (3655, 79675), (5375, 54179), (15935, 18275)]