25120540

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{1307}}^1$

素因数の和:1378

約数の個数: 36

約数和(自身を含む): 54551448

約数和(自身を除く): 29430908

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1307, 1922, 2614, 3844, 4805, 5228, 6535, 9610, 13070, 19220, 26140, 40517, 81034, 162068, 202585, 405170, 810340, 1256027, 2512054, 5024108, 6280135, 12560270, 25120540]

約数ペア:

[(1, 25120540), (2, 12560270), (4, 6280135), (5, 5024108), (10, 2512054), (20, 1256027), (31, 810340), (62, 405170), (124, 202585), (155, 162068), (310, 81034), (620, 40517), (961, 26140), (1307, 19220), (1922, 13070), (2614, 9610), (3844, 6535), (4805, 5228)]