260773328

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{19949}}^1$

素因数の和:20019

約数の個数: 40

約数和(自身を含む): 544236000

約数和(自身を除く): 283462672

約数列:

[1, 2, 4, 8, 16, 19, 38, 43, 76, 86, 152, 172, 304, 344, 688, 817, 1634, 3268, 6536, 13072, 19949, 39898, 79796, 159592, 319184, 379031, 758062, 857807, 1516124, 1715614, 3032248, 3431228, 6064496, 6862456, 13724912, 16298333, 32596666, 65193332, 130386664, 260773328]

約数ペア:

[(1, 260773328), (2, 130386664), (4, 65193332), (8, 32596666), (16, 16298333), (19, 13724912), (38, 6862456), (43, 6064496), (76, 3431228), (86, 3032248), (152, 1715614), (172, 1516124), (304, 857807), (344, 758062), (688, 379031), (817, 319184), (1634, 159592), (3268, 79796), (6536, 39898), (13072, 19949)]