204954040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{301403}}^1$

素因数の和:301431

約数の個数: 32

約数和(自身を含む): 488274480

約数和(自身を除く): 283320440

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 301403, 602806, 1205612, 1507015, 2411224, 3014030, 5123851, 6028060, 10247702, 12056120, 20495404, 25619255, 40990808, 51238510, 102477020, 204954040]

約数ペア:

[(1, 204954040), (2, 102477020), (4, 51238510), (5, 40990808), (8, 25619255), (10, 20495404), (17, 12056120), (20, 10247702), (34, 6028060), (40, 5123851), (68, 3014030), (85, 2411224), (136, 1507015), (170, 1205612), (340, 602806), (680, 301403)]