31365225

素因数分解:

$3^6\times 5^2\times {\mathrm{1721}}^1$

素因数の和:1749

約数の個数: 42

約数和(自身を含む): 58346526

約数和(自身を除く): 26981301

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 225, 243, 405, 675, 729, 1215, 1721, 2025, 3645, 5163, 6075, 8605, 15489, 18225, 25815, 43025, 46467, 77445, 129075, 139401, 232335, 387225, 418203, 697005, 1161675, 1254609, 2091015, 3485025, 6273045, 10455075, 31365225]

約数ペア:

[(1, 31365225), (3, 10455075), (5, 6273045), (9, 3485025), (15, 2091015), (25, 1254609), (27, 1161675), (45, 697005), (75, 418203), (81, 387225), (135, 232335), (225, 139401), (243, 129075), (405, 77445), (675, 46467), (729, 43025), (1215, 25815), (1721, 18225), (2025, 15489), (3645, 8605), (5163, 6075)]