81611156

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2381}}^1$

素因数の和:2456

約数の個数: 48

約数和(自身を含む): 168073920

約数和(自身を除く): 86462764

約数列:

[1, 2, 4, 11, 19, 22, 38, 41, 44, 76, 82, 164, 209, 418, 451, 779, 836, 902, 1558, 1804, 2381, 3116, 4762, 8569, 9524, 17138, 26191, 34276, 45239, 52382, 90478, 97621, 104764, 180956, 195242, 390484, 497629, 995258, 1073831, 1854799, 1990516, 2147662, 3709598, 4295324, 7419196, 20402789, 40805578, 81611156]

約数ペア:

[(1, 81611156), (2, 40805578), (4, 20402789), (11, 7419196), (19, 4295324), (22, 3709598), (38, 2147662), (41, 1990516), (44, 1854799), (76, 1073831), (82, 995258), (164, 497629), (209, 390484), (418, 195242), (451, 180956), (779, 104764), (836, 97621), (902, 90478), (1558, 52382), (1804, 45239), (2381, 34276), (3116, 26191), (4762, 17138), (8569, 9524)]