20091490

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{2389}}^1$

素因数の和:2454

約数の個数: 24

約数和(自身を含む): 37470420

約数和(自身を除く): 17378930

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 841, 1682, 2389, 4205, 4778, 8410, 11945, 23890, 69281, 138562, 346405, 692810, 2009149, 4018298, 10045745, 20091490]

約数ペア:

[(1, 20091490), (2, 10045745), (5, 4018298), (10, 2009149), (29, 692810), (58, 346405), (145, 138562), (290, 69281), (841, 23890), (1682, 11945), (2389, 8410), (4205, 4778)]