27730420

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2143}}^1$

素因数の和:2799

約数の個数: 24

約数和(自身を含む): 58351104

約数和(自身を除く): 30620684

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2143, 2588, 3235, 4286, 6470, 8572, 10715, 12940, 21430, 42860, 1386521, 2773042, 5546084, 6932605, 13865210, 27730420]

約数ペア:

[(1, 27730420), (2, 13865210), (4, 6932605), (5, 5546084), (10, 2773042), (20, 1386521), (647, 42860), (1294, 21430), (2143, 12940), (2588, 10715), (3235, 8572), (4286, 6470)]