2078503900

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{43943}}^1$

素因数の和:44011

約数の個数: 72

約数和(自身を含む): 5034927744

約数和(自身を除く): 2956423844

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 43, 44, 50, 55, 86, 100, 110, 172, 215, 220, 275, 430, 473, 550, 860, 946, 1075, 1100, 1892, 2150, 2365, 4300, 4730, 9460, 11825, 23650, 43943, 47300, 87886, 175772, 219715, 439430, 483373, 878860, 966746, 1098575, 1889549, 1933492, 2197150, 2416865, 3779098, 4394300, 4833730, 7558196, 9447745, 9667460, 12084325, 18895490, 20785039, 24168650, 37790980, 41570078, 47238725, 48337300, 83140156, 94477450, 103925195, 188954900, 207850390, 415700780, 519625975, 1039251950, 2078503900]

約数ペア:

[(1, 2078503900), (2, 1039251950), (4, 519625975), (5, 415700780), (10, 207850390), (11, 188954900), (20, 103925195), (22, 94477450), (25, 83140156), (43, 48337300), (44, 47238725), (50, 41570078), (55, 37790980), (86, 24168650), (100, 20785039), (110, 18895490), (172, 12084325), (215, 9667460), (220, 9447745), (275, 7558196), (430, 4833730), (473, 4394300), (550, 3779098), (860, 2416865), (946, 2197150), (1075, 1933492), (1100, 1889549), (1892, 1098575), (2150, 966746), (2365, 878860), (4300, 483373), (4730, 439430), (9460, 219715), (11825, 175772), (23650, 87886), (43943, 47300)]