2100691900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{457}}^1\times {\mathrm{1069}}^1$

素因数の和:1583

約数の個数: 72

約数和(自身を含む): 4679092880

約数和(自身を除く): 2578400980

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 457, 860, 914, 1069, 1075, 1828, 2138, 2150, 2285, 4276, 4300, 4570, 5345, 9140, 10690, 11425, 19651, 21380, 22850, 26725, 39302, 45700, 45967, 53450, 78604, 91934, 98255, 106900, 183868, 196510, 229835, 393020, 459670, 488533, 491275, 919340, 977066, 982550, 1149175, 1954132, 1965100, 2298350, 2442665, 4596700, 4885330, 9770660, 12213325, 21006919, 24426650, 42013838, 48853300, 84027676, 105034595, 210069190, 420138380, 525172975, 1050345950, 2100691900]

約数ペア:

[(1, 2100691900), (2, 1050345950), (4, 525172975), (5, 420138380), (10, 210069190), (20, 105034595), (25, 84027676), (43, 48853300), (50, 42013838), (86, 24426650), (100, 21006919), (172, 12213325), (215, 9770660), (430, 4885330), (457, 4596700), (860, 2442665), (914, 2298350), (1069, 1965100), (1075, 1954132), (1828, 1149175), (2138, 982550), (2150, 977066), (2285, 919340), (4276, 491275), (4300, 488533), (4570, 459670), (5345, 393020), (9140, 229835), (10690, 196510), (11425, 183868), (19651, 106900), (21380, 98255), (22850, 91934), (26725, 78604), (39302, 53450), (45700, 45967)]