18089420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{107}}^2$

素因数の和:302

約数の個数: 36

約数和(自身を含む): 38831520

約数和(自身を除く): 20742100

約数列:

[1, 2, 4, 5, 10, 20, 79, 107, 158, 214, 316, 395, 428, 535, 790, 1070, 1580, 2140, 8453, 11449, 16906, 22898, 33812, 42265, 45796, 57245, 84530, 114490, 169060, 228980, 904471, 1808942, 3617884, 4522355, 9044710, 18089420]

約数ペア:

[(1, 18089420), (2, 9044710), (4, 4522355), (5, 3617884), (10, 1808942), (20, 904471), (79, 228980), (107, 169060), (158, 114490), (214, 84530), (316, 57245), (395, 45796), (428, 42265), (535, 33812), (790, 22898), (1070, 16906), (1580, 11449), (2140, 8453)]