20001268

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{10061}}^1$

素因数の和:10143

約数の個数: 24

約数和(自身を含む): 40569984

約数和(自身を除く): 20568716

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 284, 497, 994, 1988, 10061, 20122, 40244, 70427, 140854, 281708, 714331, 1428662, 2857324, 5000317, 10000634, 20001268]

約数ペア:

[(1, 20001268), (2, 10000634), (4, 5000317), (7, 2857324), (14, 1428662), (28, 714331), (71, 281708), (142, 140854), (284, 70427), (497, 40244), (994, 20122), (1988, 10061)]