642764164

素因数分解:

$2^2\times 7^3\times {\mathrm{23}}^1\times {\mathrm{20369}}^1$

素因数の和:20417

約数の個数: 48

約数和(自身を含む): 1368864000

約数和(自身を除く): 726099836

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 343, 644, 686, 1127, 1372, 2254, 4508, 7889, 15778, 20369, 31556, 40738, 81476, 142583, 285166, 468487, 570332, 936974, 998081, 1873948, 1996162, 3279409, 3992324, 6558818, 6986567, 13117636, 13973134, 22955863, 27946268, 45911726, 91823452, 160691041, 321382082, 642764164]

約数ペア:

[(1, 642764164), (2, 321382082), (4, 160691041), (7, 91823452), (14, 45911726), (23, 27946268), (28, 22955863), (46, 13973134), (49, 13117636), (92, 6986567), (98, 6558818), (161, 3992324), (196, 3279409), (322, 1996162), (343, 1873948), (644, 998081), (686, 936974), (1127, 570332), (1372, 468487), (2254, 285166), (4508, 142583), (7889, 81476), (15778, 40738), (20369, 31556)]