256172756

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:289

約数の個数: 72

約数和(自身を含む): 542719296

約数和(自身を除く): 286546540

約数列:

[1, 2, 4, 7, 14, 28, 37, 41, 74, 82, 148, 163, 164, 259, 287, 326, 518, 574, 652, 1036, 1141, 1148, 1369, 1517, 2282, 2738, 3034, 4564, 5476, 6031, 6068, 6683, 9583, 10619, 12062, 13366, 19166, 21238, 24124, 26732, 38332, 42217, 42476, 46781, 56129, 84434, 93562, 112258, 168868, 187124, 223147, 224516, 247271, 392903, 446294, 494542, 785806, 892588, 989084, 1562029, 1571612, 1730897, 3124058, 3461794, 6248116, 6923588, 9149027, 18298054, 36596108, 64043189, 128086378, 256172756]

約数ペア:

[(1, 256172756), (2, 128086378), (4, 64043189), (7, 36596108), (14, 18298054), (28, 9149027), (37, 6923588), (41, 6248116), (74, 3461794), (82, 3124058), (148, 1730897), (163, 1571612), (164, 1562029), (259, 989084), (287, 892588), (326, 785806), (518, 494542), (574, 446294), (652, 392903), (1036, 247271), (1141, 224516), (1148, 223147), (1369, 187124), (1517, 168868), (2282, 112258), (2738, 93562), (3034, 84434), (4564, 56129), (5476, 46781), (6031, 42476), (6068, 42217), (6683, 38332), (9583, 26732), (10619, 24124), (12062, 21238), (13366, 19166)]