28900960

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{16421}}^1$

素因数の和:16447

約数の個数: 48

約数和(自身を含む): 74490192

約数和(自身を除く): 45589232

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 160, 176, 220, 352, 440, 880, 1760, 16421, 32842, 65684, 82105, 131368, 164210, 180631, 262736, 328420, 361262, 525472, 656840, 722524, 903155, 1313680, 1445048, 1806310, 2627360, 2890096, 3612620, 5780192, 7225240, 14450480, 28900960]

約数ペア:

[(1, 28900960), (2, 14450480), (4, 7225240), (5, 5780192), (8, 3612620), (10, 2890096), (11, 2627360), (16, 1806310), (20, 1445048), (22, 1313680), (32, 903155), (40, 722524), (44, 656840), (55, 525472), (80, 361262), (88, 328420), (110, 262736), (160, 180631), (176, 164210), (220, 131368), (352, 82105), (440, 65684), (880, 32842), (1760, 16421)]