81921112

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{859}}^1$

素因数の和:1016

約数の個数: 64

約数和(自身を含む): 190713600

約数和(自身を除く): 108792488

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 131, 182, 262, 364, 524, 728, 859, 917, 1048, 1703, 1718, 1834, 3406, 3436, 3668, 6013, 6812, 6872, 7336, 11167, 11921, 12026, 13624, 22334, 23842, 24052, 44668, 47684, 48104, 78169, 89336, 95368, 112529, 156338, 225058, 312676, 450116, 625352, 787703, 900232, 1462877, 1575406, 2925754, 3150812, 5851508, 6301624, 10240139, 11703016, 20480278, 40960556, 81921112]

約数ペア:

[(1, 81921112), (2, 40960556), (4, 20480278), (7, 11703016), (8, 10240139), (13, 6301624), (14, 5851508), (26, 3150812), (28, 2925754), (52, 1575406), (56, 1462877), (91, 900232), (104, 787703), (131, 625352), (182, 450116), (262, 312676), (364, 225058), (524, 156338), (728, 112529), (859, 95368), (917, 89336), (1048, 78169), (1703, 48104), (1718, 47684), (1834, 44668), (3406, 24052), (3436, 23842), (3668, 22334), (6013, 13624), (6812, 12026), (6872, 11921), (7336, 11167)]