644921396

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{467}}^1$

素因数の和:589

約数の個数: 96

約数和(自身を含む): 1402232832

約数和(自身を除く): 757311436

約数列:

[1, 2, 4, 7, 14, 28, 31, 37, 43, 62, 74, 86, 124, 148, 172, 217, 259, 301, 434, 467, 518, 602, 868, 934, 1036, 1147, 1204, 1333, 1591, 1868, 2294, 2666, 3182, 3269, 4588, 5332, 6364, 6538, 8029, 9331, 11137, 13076, 14477, 16058, 17279, 18662, 20081, 22274, 28954, 32116, 34558, 37324, 40162, 44548, 49321, 57908, 69116, 80324, 98642, 101339, 120953, 140567, 197284, 202678, 241906, 281134, 345247, 405356, 483812, 535649, 562268, 622511, 690494, 742997, 1071298, 1245022, 1380988, 1485994, 2142596, 2490044, 2971988, 3749543, 4357577, 5200979, 7499086, 8715154, 10401958, 14998172, 17430308, 20803916, 23032907, 46065814, 92131628, 161230349, 322460698, 644921396]

約数ペア:

[(1, 644921396), (2, 322460698), (4, 161230349), (7, 92131628), (14, 46065814), (28, 23032907), (31, 20803916), (37, 17430308), (43, 14998172), (62, 10401958), (74, 8715154), (86, 7499086), (124, 5200979), (148, 4357577), (172, 3749543), (217, 2971988), (259, 2490044), (301, 2142596), (434, 1485994), (467, 1380988), (518, 1245022), (602, 1071298), (868, 742997), (934, 690494), (1036, 622511), (1147, 562268), (1204, 535649), (1333, 483812), (1591, 405356), (1868, 345247), (2294, 281134), (2666, 241906), (3182, 202678), (3269, 197284), (4588, 140567), (5332, 120953), (6364, 101339), (6538, 98642), (8029, 80324), (9331, 69116), (11137, 57908), (13076, 49321), (14477, 44548), (16058, 40162), (17279, 37324), (18662, 34558), (20081, 32116), (22274, 28954)]