28481475

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1$

素因数の和:145

約数の個数: 96

約数和(自身を含む): 57139200

約数和(自身を除く): 28657725

約数列:

[1, 3, 5, 11, 15, 19, 23, 25, 33, 55, 57, 69, 75, 79, 95, 115, 165, 209, 237, 253, 275, 285, 345, 395, 437, 475, 575, 627, 759, 825, 869, 1045, 1185, 1265, 1311, 1425, 1501, 1725, 1817, 1975, 2185, 2607, 3135, 3795, 4345, 4503, 4807, 5225, 5451, 5925, 6325, 6555, 7505, 9085, 10925, 13035, 14421, 15675, 16511, 18975, 19987, 21725, 22515, 24035, 27255, 32775, 34523, 37525, 45425, 49533, 59961, 65175, 72105, 82555, 99935, 103569, 112575, 120175, 136275, 172615, 247665, 299805, 360525, 379753, 412775, 499675, 517845, 863075, 1139259, 1238325, 1499025, 1898765, 2589225, 5696295, 9493825, 28481475]

約数ペア:

[(1, 28481475), (3, 9493825), (5, 5696295), (11, 2589225), (15, 1898765), (19, 1499025), (23, 1238325), (25, 1139259), (33, 863075), (55, 517845), (57, 499675), (69, 412775), (75, 379753), (79, 360525), (95, 299805), (115, 247665), (165, 172615), (209, 136275), (237, 120175), (253, 112575), (275, 103569), (285, 99935), (345, 82555), (395, 72105), (437, 65175), (475, 59961), (575, 49533), (627, 45425), (759, 37525), (825, 34523), (869, 32775), (1045, 27255), (1185, 24035), (1265, 22515), (1311, 21725), (1425, 19987), (1501, 18975), (1725, 16511), (1817, 15675), (1975, 14421), (2185, 13035), (2607, 10925), (3135, 9085), (3795, 7505), (4345, 6555), (4503, 6325), (4807, 5925), (5225, 5451)]