161245980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{127973}}^1$

素因数の和:127995

約数の個数: 72

約数和(自身を含む): 558990432

約数和(自身を除く): 397744452

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 127973, 255946, 383919, 511892, 639865, 767838, 895811, 1151757, 1279730, 1535676, 1791622, 1919595, 2303514, 2559460, 2687433, 3583244, 3839190, 4479055, 4607028, 5374866, 5758785, 7678380, 8062299, 8958110, 10749732, 11517570, 13437165, 16124598, 17916220, 23035140, 26874330, 32249196, 40311495, 53748660, 80622990, 161245980]

約数ペア:

[(1, 161245980), (2, 80622990), (3, 53748660), (4, 40311495), (5, 32249196), (6, 26874330), (7, 23035140), (9, 17916220), (10, 16124598), (12, 13437165), (14, 11517570), (15, 10749732), (18, 8958110), (20, 8062299), (21, 7678380), (28, 5758785), (30, 5374866), (35, 4607028), (36, 4479055), (42, 3839190), (45, 3583244), (60, 2687433), (63, 2559460), (70, 2303514), (84, 1919595), (90, 1791622), (105, 1535676), (126, 1279730), (140, 1151757), (180, 895811), (210, 767838), (252, 639865), (315, 511892), (420, 383919), (630, 255946), (1260, 127973)]