28756376

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:576

約数の個数: 48

約数和(自身を含む): 60360720

約数和(自身を除く): 31604344

約数列:

[1, 2, 4, 8, 11, 22, 44, 61, 88, 121, 122, 242, 244, 484, 487, 488, 671, 968, 974, 1342, 1948, 2684, 3896, 5357, 5368, 7381, 10714, 14762, 21428, 29524, 29707, 42856, 58927, 59048, 59414, 117854, 118828, 235708, 237656, 326777, 471416, 653554, 1307108, 2614216, 3594547, 7189094, 14378188, 28756376]

約数ペア:

[(1, 28756376), (2, 14378188), (4, 7189094), (8, 3594547), (11, 2614216), (22, 1307108), (44, 653554), (61, 471416), (88, 326777), (121, 237656), (122, 235708), (242, 118828), (244, 117854), (484, 59414), (487, 59048), (488, 58927), (671, 42856), (968, 29707), (974, 29524), (1342, 21428), (1948, 14762), (2684, 10714), (3896, 7381), (5357, 5368)]