28763990

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{443}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 53450496

約数和(自身を除く): 24686506

約数列:

[1, 2, 5, 10, 43, 86, 151, 215, 302, 430, 443, 755, 886, 1510, 2215, 4430, 6493, 12986, 19049, 32465, 38098, 64930, 66893, 95245, 133786, 190490, 334465, 668930, 2876399, 5752798, 14381995, 28763990]

約数ペア:

[(1, 28763990), (2, 14381995), (5, 5752798), (10, 2876399), (43, 668930), (86, 334465), (151, 190490), (215, 133786), (302, 95245), (430, 66893), (443, 64930), (755, 38098), (886, 32465), (1510, 19049), (2215, 12986), (4430, 6493)]