20005290

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{11699}}^1$

素因数の和:11731

約数の個数: 48

約数和(自身を含む): 54756000

約数和(自身を除く): 34750710

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 30, 38, 45, 57, 90, 95, 114, 171, 190, 285, 342, 570, 855, 1710, 11699, 23398, 35097, 58495, 70194, 105291, 116990, 175485, 210582, 222281, 350970, 444562, 526455, 666843, 1052910, 1111405, 1333686, 2000529, 2222810, 3334215, 4001058, 6668430, 10002645, 20005290]

約数ペア:

[(1, 20005290), (2, 10002645), (3, 6668430), (5, 4001058), (6, 3334215), (9, 2222810), (10, 2000529), (15, 1333686), (18, 1111405), (19, 1052910), (30, 666843), (38, 526455), (45, 444562), (57, 350970), (90, 222281), (95, 210582), (114, 175485), (171, 116990), (190, 105291), (285, 70194), (342, 58495), (570, 35097), (855, 23398), (1710, 11699)]