25908080

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{499}}^1$

素因数の和:582

約数の個数: 80

約数和(自身を含む): 66960000

約数和(自身を除く): 41051920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 59, 80, 88, 110, 118, 176, 220, 236, 295, 440, 472, 499, 590, 649, 880, 944, 998, 1180, 1298, 1996, 2360, 2495, 2596, 3245, 3992, 4720, 4990, 5192, 5489, 6490, 7984, 9980, 10384, 10978, 12980, 19960, 21956, 25960, 27445, 29441, 39920, 43912, 51920, 54890, 58882, 87824, 109780, 117764, 147205, 219560, 235528, 294410, 323851, 439120, 471056, 588820, 647702, 1177640, 1295404, 1619255, 2355280, 2590808, 3238510, 5181616, 6477020, 12954040, 25908080]

約数ペア:

[(1, 25908080), (2, 12954040), (4, 6477020), (5, 5181616), (8, 3238510), (10, 2590808), (11, 2355280), (16, 1619255), (20, 1295404), (22, 1177640), (40, 647702), (44, 588820), (55, 471056), (59, 439120), (80, 323851), (88, 294410), (110, 235528), (118, 219560), (176, 147205), (220, 117764), (236, 109780), (295, 87824), (440, 58882), (472, 54890), (499, 51920), (590, 43912), (649, 39920), (880, 29441), (944, 27445), (998, 25960), (1180, 21956), (1298, 19960), (1996, 12980), (2360, 10978), (2495, 10384), (2596, 9980), (3245, 7984), (3992, 6490), (4720, 5489), (4990, 5192)]