380780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{241}}^1$

素因数の和:329

約数の個数: 24

約数和(自身を含む): 813120

約数和(自身を除く): 432340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 241, 316, 395, 482, 790, 964, 1205, 1580, 2410, 4820, 19039, 38078, 76156, 95195, 190390, 380780]

約数ペア:

[(1, 380780), (2, 190390), (4, 95195), (5, 76156), (10, 38078), (20, 19039), (79, 4820), (158, 2410), (241, 1580), (316, 1205), (395, 964), (482, 790)]