204089420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{5507}}^1$

素因数の和:5642

約数の個数: 48

約数和(自身を含む): 458045280

約数和(自身を除く): 253955860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 109, 170, 218, 340, 436, 545, 1090, 1853, 2180, 3706, 5507, 7412, 9265, 11014, 18530, 22028, 27535, 37060, 55070, 93619, 110140, 187238, 374476, 468095, 600263, 936190, 1200526, 1872380, 2401052, 3001315, 6002630, 10204471, 12005260, 20408942, 40817884, 51022355, 102044710, 204089420]

約数ペア:

[(1, 204089420), (2, 102044710), (4, 51022355), (5, 40817884), (10, 20408942), (17, 12005260), (20, 10204471), (34, 6002630), (68, 3001315), (85, 2401052), (109, 1872380), (170, 1200526), (218, 936190), (340, 600263), (436, 468095), (545, 374476), (1090, 187238), (1853, 110140), (2180, 93619), (3706, 55070), (5507, 37060), (7412, 27535), (9265, 22028), (11014, 18530)]