18990120

素因数分解:

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

素因数の和:8362

約数の個数: 64

約数和(自身を含む): 59976000

約数和(自身を除く): 40985880

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 30, 38, 40, 57, 60, 76, 95, 114, 120, 152, 190, 228, 285, 380, 456, 570, 760, 1140, 2280, 8329, 16658, 24987, 33316, 41645, 49974, 66632, 83290, 99948, 124935, 158251, 166580, 199896, 249870, 316502, 333160, 474753, 499740, 633004, 791255, 949506, 999480, 1266008, 1582510, 1899012, 2373765, 3165020, 3798024, 4747530, 6330040, 9495060, 18990120]

約数ペア:

[(1, 18990120), (2, 9495060), (3, 6330040), (4, 4747530), (5, 3798024), (6, 3165020), (8, 2373765), (10, 1899012), (12, 1582510), (15, 1266008), (19, 999480), (20, 949506), (24, 791255), (30, 633004), (38, 499740), (40, 474753), (57, 333160), (60, 316502), (76, 249870), (95, 199896), (114, 166580), (120, 158251), (152, 124935), (190, 99948), (228, 83290), (285, 66632), (380, 49974), (456, 41645), (570, 33316), (760, 24987), (1140, 16658), (2280, 8329)]