1520572220

素因数分解:

$2^2\times 5^1\times {\mathrm{6481}}^1\times {\mathrm{11731}}^1$

素因数の和:18221

約数の個数: 24

約数和(自身を含む): 3193966608

約数和(自身を除く): 1673394388

約数列:

[1, 2, 4, 5, 10, 20, 6481, 11731, 12962, 23462, 25924, 32405, 46924, 58655, 64810, 117310, 129620, 234620, 76028611, 152057222, 304114444, 380143055, 760286110, 1520572220]

約数ペア:

[(1, 1520572220), (2, 760286110), (4, 380143055), (5, 304114444), (10, 152057222), (20, 76028611), (6481, 234620), (11731, 129620), (12962, 117310), (23462, 64810), (25924, 58655), (32405, 46924)]