25121560

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3853}}^1$

素因数の和:4027

約数の個数: 32

約数和(自身を含む): 56885040

約数和(自身を除く): 31763480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 3853, 6520, 7706, 15412, 19265, 30824, 38530, 77060, 154120, 628039, 1256078, 2512156, 3140195, 5024312, 6280390, 12560780, 25121560]

約数ペア:

[(1, 25121560), (2, 12560780), (4, 6280390), (5, 5024312), (8, 3140195), (10, 2512156), (20, 1256078), (40, 628039), (163, 154120), (326, 77060), (652, 38530), (815, 30824), (1304, 19265), (1630, 15412), (3260, 7706), (3853, 6520)]