5415440

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{487}}^1$

素因数の和:639

約数の個数: 40

約数和(自身を含む): 12707520

約数和(自身を除く): 7292080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 487, 556, 695, 974, 1112, 1390, 1948, 2224, 2435, 2780, 3896, 4870, 5560, 7792, 9740, 11120, 19480, 38960, 67693, 135386, 270772, 338465, 541544, 676930, 1083088, 1353860, 2707720, 5415440]

約数ペア:

[(1, 5415440), (2, 2707720), (4, 1353860), (5, 1083088), (8, 676930), (10, 541544), (16, 338465), (20, 270772), (40, 135386), (80, 67693), (139, 38960), (278, 19480), (487, 11120), (556, 9740), (695, 7792), (974, 5560), (1112, 4870), (1390, 3896), (1948, 2780), (2224, 2435)]