67989420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{971}}^1$

素因数の和:1375

約数の個数: 72

約数和(自身を含む): 206977680

約数和(自身を除く): 138988260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 389, 778, 971, 1167, 1556, 1942, 1945, 2334, 2913, 3501, 3884, 3890, 4668, 4855, 5826, 5835, 7002, 7780, 8739, 9710, 11652, 11670, 14004, 14565, 17478, 17505, 19420, 23340, 29130, 34956, 35010, 43695, 58260, 70020, 87390, 174780, 377719, 755438, 1133157, 1510876, 1888595, 2266314, 3399471, 3777190, 4532628, 5665785, 6798942, 7554380, 11331570, 13597884, 16997355, 22663140, 33994710, 67989420]

約数ペア:

[(1, 67989420), (2, 33994710), (3, 22663140), (4, 16997355), (5, 13597884), (6, 11331570), (9, 7554380), (10, 6798942), (12, 5665785), (15, 4532628), (18, 3777190), (20, 3399471), (30, 2266314), (36, 1888595), (45, 1510876), (60, 1133157), (90, 755438), (180, 377719), (389, 174780), (778, 87390), (971, 70020), (1167, 58260), (1556, 43695), (1942, 35010), (1945, 34956), (2334, 29130), (2913, 23340), (3501, 19420), (3884, 17505), (3890, 17478), (4668, 14565), (4855, 14004), (5826, 11670), (5835, 11652), (7002, 9710), (7780, 8739)]