256812804

素因数分解:

$2^2\times 3^2\times {\mathrm{31}}^1\times {\mathrm{359}}^1\times {\mathrm{641}}^1$

素因数の和:1041

約数の個数: 72

約数和(自身を含む): 673021440

約数和(自身を除く): 416208636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 31, 36, 62, 93, 124, 186, 279, 359, 372, 558, 641, 718, 1077, 1116, 1282, 1436, 1923, 2154, 2564, 3231, 3846, 4308, 5769, 6462, 7692, 11129, 11538, 12924, 19871, 22258, 23076, 33387, 39742, 44516, 59613, 66774, 79484, 100161, 119226, 133548, 178839, 200322, 230119, 238452, 357678, 400644, 460238, 690357, 715356, 920476, 1380714, 2071071, 2761428, 4142142, 7133689, 8284284, 14267378, 21401067, 28534756, 42802134, 64203201, 85604268, 128406402, 256812804]

約数ペア:

[(1, 256812804), (2, 128406402), (3, 85604268), (4, 64203201), (6, 42802134), (9, 28534756), (12, 21401067), (18, 14267378), (31, 8284284), (36, 7133689), (62, 4142142), (93, 2761428), (124, 2071071), (186, 1380714), (279, 920476), (359, 715356), (372, 690357), (558, 460238), (641, 400644), (718, 357678), (1077, 238452), (1116, 230119), (1282, 200322), (1436, 178839), (1923, 133548), (2154, 119226), (2564, 100161), (3231, 79484), (3846, 66774), (4308, 59613), (5769, 44516), (6462, 39742), (7692, 33387), (11129, 23076), (11538, 22258), (12924, 19871)]