326520280

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:253

約数の個数: 128

約数和(自身を含む): 797817600

約数和(自身を除く): 471297320

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 47, 53, 58, 94, 106, 113, 116, 145, 188, 212, 226, 232, 235, 265, 290, 376, 424, 452, 470, 530, 565, 580, 904, 940, 1060, 1130, 1160, 1363, 1537, 1880, 2120, 2260, 2491, 2726, 3074, 3277, 4520, 4982, 5311, 5452, 5989, 6148, 6554, 6815, 7685, 9964, 10622, 10904, 11978, 12296, 12455, 13108, 13630, 15370, 16385, 19928, 21244, 23956, 24910, 26216, 26555, 27260, 29945, 30740, 32770, 42488, 47912, 49820, 53110, 54520, 59890, 61480, 65540, 72239, 99640, 106220, 119780, 131080, 144478, 154019, 173681, 212440, 239560, 281483, 288956, 308038, 347362, 361195, 562966, 577912, 616076, 694724, 722390, 770095, 868405, 1125932, 1232152, 1389448, 1407415, 1444780, 1540190, 1736810, 2251864, 2814830, 2889560, 3080380, 3473620, 5629660, 6160760, 6947240, 8163007, 11259320, 16326014, 32652028, 40815035, 65304056, 81630070, 163260140, 326520280]

約数ペア:

[(1, 326520280), (2, 163260140), (4, 81630070), (5, 65304056), (8, 40815035), (10, 32652028), (20, 16326014), (29, 11259320), (40, 8163007), (47, 6947240), (53, 6160760), (58, 5629660), (94, 3473620), (106, 3080380), (113, 2889560), (116, 2814830), (145, 2251864), (188, 1736810), (212, 1540190), (226, 1444780), (232, 1407415), (235, 1389448), (265, 1232152), (290, 1125932), (376, 868405), (424, 770095), (452, 722390), (470, 694724), (530, 616076), (565, 577912), (580, 562966), (904, 361195), (940, 347362), (1060, 308038), (1130, 288956), (1160, 281483), (1363, 239560), (1537, 212440), (1880, 173681), (2120, 154019), (2260, 144478), (2491, 131080), (2726, 119780), (3074, 106220), (3277, 99640), (4520, 72239), (4982, 65540), (5311, 61480), (5452, 59890), (5989, 54520), (6148, 53110), (6554, 49820), (6815, 47912), (7685, 42488), (9964, 32770), (10622, 30740), (10904, 29945), (11978, 27260), (12296, 26555), (12455, 26216), (13108, 24910), (13630, 23956), (15370, 21244), (16385, 19928)]