28393360

素因数分解:

$2^4\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1381}}^1$

素因数の和:1651

約数の個数: 40

約数和(自身を含む): 66319416

約数和(自身を除く): 37926056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 257, 514, 1028, 1285, 1381, 2056, 2570, 2762, 4112, 5140, 5524, 6905, 10280, 11048, 13810, 20560, 22096, 27620, 55240, 110480, 354917, 709834, 1419668, 1774585, 2839336, 3549170, 5678672, 7098340, 14196680, 28393360]

約数ペア:

[(1, 28393360), (2, 14196680), (4, 7098340), (5, 5678672), (8, 3549170), (10, 2839336), (16, 1774585), (20, 1419668), (40, 709834), (80, 354917), (257, 110480), (514, 55240), (1028, 27620), (1285, 22096), (1381, 20560), (2056, 13810), (2570, 11048), (2762, 10280), (4112, 6905), (5140, 5524)]