18400091440

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{877}}^1\times {\mathrm{15427}}^1$

素因数の和:16334

約数の個数: 80

約数和(自身を含む): 45351284832

約数和(自身を除く): 26951193392

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 877, 1360, 1754, 3508, 4385, 7016, 8770, 14032, 14909, 15427, 17540, 29818, 30854, 35080, 59636, 61708, 70160, 74545, 77135, 119272, 123416, 149090, 154270, 238544, 246832, 262259, 298180, 308540, 524518, 596360, 617080, 1049036, 1192720, 1234160, 1311295, 2098072, 2622590, 4196144, 5245180, 10490360, 13529479, 20980720, 27058958, 54117916, 67647395, 108235832, 135294790, 216471664, 230001143, 270589580, 460002286, 541179160, 920004572, 1082358320, 1150005715, 1840009144, 2300011430, 3680018288, 4600022860, 9200045720, 18400091440]

約数ペア:

[(1, 18400091440), (2, 9200045720), (4, 4600022860), (5, 3680018288), (8, 2300011430), (10, 1840009144), (16, 1150005715), (17, 1082358320), (20, 920004572), (34, 541179160), (40, 460002286), (68, 270589580), (80, 230001143), (85, 216471664), (136, 135294790), (170, 108235832), (272, 67647395), (340, 54117916), (680, 27058958), (877, 20980720), (1360, 13529479), (1754, 10490360), (3508, 5245180), (4385, 4196144), (7016, 2622590), (8770, 2098072), (14032, 1311295), (14909, 1234160), (15427, 1192720), (17540, 1049036), (29818, 617080), (30854, 596360), (35080, 524518), (59636, 308540), (61708, 298180), (70160, 262259), (74545, 246832), (77135, 238544), (119272, 154270), (123416, 149090)]