661796144

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{50627}}^1$

素因数の和:50697

約数の個数: 40

約数和(自身を含む): 1381131840

約数和(自身を除く): 719335696

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1634, 3268, 6536, 13072, 50627, 101254, 202508, 405016, 810032, 961913, 1923826, 2176961, 3847652, 4353922, 7695304, 8707844, 15390608, 17415688, 34831376, 41362259, 82724518, 165449036, 330898072, 661796144]

約数ペア:

[(1, 661796144), (2, 330898072), (4, 165449036), (8, 82724518), (16, 41362259), (19, 34831376), (38, 17415688), (43, 15390608), (76, 8707844), (86, 7695304), (152, 4353922), (172, 3847652), (304, 2176961), (344, 1923826), (688, 961913), (817, 810032), (1634, 405016), (3268, 202508), (6536, 101254), (13072, 50627)]