205123725

素因数分解:

$3^3\times 5^2\times {\mathrm{409}}^1\times {\mathrm{743}}^1$

素因数の和:1171

約数の個数: 48

約数和(自身を含む): 378249600

約数和(自身を除く): 173125875

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 135, 225, 409, 675, 743, 1227, 2045, 2229, 3681, 3715, 6135, 6687, 10225, 11043, 11145, 18405, 18575, 20061, 30675, 33435, 55215, 55725, 92025, 100305, 167175, 276075, 303887, 501525, 911661, 1519435, 2734983, 4558305, 7597175, 8204949, 13674915, 22791525, 41024745, 68374575, 205123725]

約数ペア:

[(1, 205123725), (3, 68374575), (5, 41024745), (9, 22791525), (15, 13674915), (25, 8204949), (27, 7597175), (45, 4558305), (75, 2734983), (135, 1519435), (225, 911661), (409, 501525), (675, 303887), (743, 276075), (1227, 167175), (2045, 100305), (2229, 92025), (3681, 55725), (3715, 55215), (6135, 33435), (6687, 30675), (10225, 20061), (11043, 18575), (11145, 18405)]