389860978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{3947}}^1$

素因数の和:4122

約数の個数: 32

約数和(自身を含む): 656631360

約数和(自身を除く): 266770382

約数列:

[1, 2, 13, 26, 29, 58, 131, 262, 377, 754, 1703, 3406, 3799, 3947, 7598, 7894, 49387, 51311, 98774, 102622, 114463, 228926, 517057, 1034114, 1488019, 2976038, 6721741, 13443482, 14994653, 29989306, 194930489, 389860978]

約数ペア:

[(1, 389860978), (2, 194930489), (13, 29989306), (26, 14994653), (29, 13443482), (58, 6721741), (131, 2976038), (262, 1488019), (377, 1034114), (754, 517057), (1703, 228926), (3406, 114463), (3799, 102622), (3947, 98774), (7598, 51311), (7894, 49387)]