28485180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8329}}^1$

素因数の和:8363

約数の個数: 72

約数和(自身を含む): 90963600

約数和(自身を除く): 62478420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 8329, 16658, 24987, 33316, 41645, 49974, 74961, 83290, 99948, 124935, 149922, 158251, 166580, 249870, 299844, 316502, 374805, 474753, 499740, 633004, 749610, 791255, 949506, 1424259, 1499220, 1582510, 1899012, 2373765, 2848518, 3165020, 4747530, 5697036, 7121295, 9495060, 14242590, 28485180]

約数ペア:

[(1, 28485180), (2, 14242590), (3, 9495060), (4, 7121295), (5, 5697036), (6, 4747530), (9, 3165020), (10, 2848518), (12, 2373765), (15, 1899012), (18, 1582510), (19, 1499220), (20, 1424259), (30, 949506), (36, 791255), (38, 749610), (45, 633004), (57, 499740), (60, 474753), (76, 374805), (90, 316502), (95, 299844), (114, 249870), (171, 166580), (180, 158251), (190, 149922), (228, 124935), (285, 99948), (342, 83290), (380, 74961), (570, 49974), (684, 41645), (855, 33316), (1140, 24987), (1710, 16658), (3420, 8329)]