205122375

素因数分解:

$3^6\times 5^3\times {\mathrm{2251}}^1$

素因数の和:2284

約数の個数: 56

約数和(自身を含む): 383984016

約数和(自身を除く): 178861641

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 243, 375, 405, 675, 729, 1125, 1215, 2025, 2251, 3375, 3645, 6075, 6753, 10125, 11255, 18225, 20259, 30375, 33765, 56275, 60777, 91125, 101295, 168825, 182331, 281375, 303885, 506475, 546993, 844125, 911655, 1519425, 1640979, 2532375, 2734965, 4558275, 7597125, 8204895, 13674825, 22791375, 41024475, 68374125, 205122375]

約数ペア:

[(1, 205122375), (3, 68374125), (5, 41024475), (9, 22791375), (15, 13674825), (25, 8204895), (27, 7597125), (45, 4558275), (75, 2734965), (81, 2532375), (125, 1640979), (135, 1519425), (225, 911655), (243, 844125), (375, 546993), (405, 506475), (675, 303885), (729, 281375), (1125, 182331), (1215, 168825), (2025, 101295), (2251, 91125), (3375, 60777), (3645, 56275), (6075, 33765), (6753, 30375), (10125, 20259), (11255, 18225)]