51256780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{32441}}^1$

素因数の和:32529

約数の個数: 24

約数和(自身を含む): 109005120

約数和(自身を除く): 57748340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 32441, 64882, 129764, 162205, 324410, 648820, 2562839, 5125678, 10251356, 12814195, 25628390, 51256780]

約数ペア:

[(1, 51256780), (2, 25628390), (4, 12814195), (5, 10251356), (10, 5125678), (20, 2562839), (79, 648820), (158, 324410), (316, 162205), (395, 129764), (790, 64882), (1580, 32441)]