28561225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{401}}^1$

素因数の和:466

約数の個数: 48

約数和(自身を含む): 45461376

約数和(自身を除く): 16900151

約数列:

[1, 5, 7, 11, 25, 35, 37, 55, 77, 175, 185, 259, 275, 385, 401, 407, 925, 1295, 1925, 2005, 2035, 2807, 2849, 4411, 6475, 10025, 10175, 14035, 14245, 14837, 22055, 30877, 70175, 71225, 74185, 103859, 110275, 154385, 163207, 370925, 519295, 771925, 816035, 1142449, 2596475, 4080175, 5712245, 28561225]

約数ペア:

[(1, 28561225), (5, 5712245), (7, 4080175), (11, 2596475), (25, 1142449), (35, 816035), (37, 771925), (55, 519295), (77, 370925), (175, 163207), (185, 154385), (259, 110275), (275, 103859), (385, 74185), (401, 71225), (407, 70175), (925, 30877), (1295, 22055), (1925, 14837), (2005, 14245), (2035, 14035), (2807, 10175), (2849, 10025), (4411, 6475)]