66871980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{5897}}^1$

素因数の和:5925

約数の個数: 120

約数和(自身を含む): 239789088

約数和(自身を除く): 172917108

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 30, 35, 36, 42, 45, 54, 60, 63, 70, 81, 84, 90, 105, 108, 126, 135, 140, 162, 180, 189, 210, 252, 270, 315, 324, 378, 405, 420, 540, 567, 630, 756, 810, 945, 1134, 1260, 1620, 1890, 2268, 2835, 3780, 5670, 5897, 11340, 11794, 17691, 23588, 29485, 35382, 41279, 53073, 58970, 70764, 82558, 88455, 106146, 117940, 123837, 159219, 165116, 176910, 206395, 212292, 247674, 265365, 318438, 353820, 371511, 412790, 477657, 495348, 530730, 619185, 636876, 743022, 796095, 825580, 955314, 1061460, 1114533, 1238370, 1486044, 1592190, 1857555, 1910628, 2229066, 2388285, 2476740, 3184380, 3343599, 3715110, 4458132, 4776570, 5572665, 6687198, 7430220, 9553140, 11145330, 13374396, 16717995, 22290660, 33435990, 66871980]

約数ペア:

[(1, 66871980), (2, 33435990), (3, 22290660), (4, 16717995), (5, 13374396), (6, 11145330), (7, 9553140), (9, 7430220), (10, 6687198), (12, 5572665), (14, 4776570), (15, 4458132), (18, 3715110), (20, 3343599), (21, 3184380), (27, 2476740), (28, 2388285), (30, 2229066), (35, 1910628), (36, 1857555), (42, 1592190), (45, 1486044), (54, 1238370), (60, 1114533), (63, 1061460), (70, 955314), (81, 825580), (84, 796095), (90, 743022), (105, 636876), (108, 619185), (126, 530730), (135, 495348), (140, 477657), (162, 412790), (180, 371511), (189, 353820), (210, 318438), (252, 265365), (270, 247674), (315, 212292), (324, 206395), (378, 176910), (405, 165116), (420, 159219), (540, 123837), (567, 117940), (630, 106146), (756, 88455), (810, 82558), (945, 70764), (1134, 58970), (1260, 53073), (1620, 41279), (1890, 35382), (2268, 29485), (2835, 23588), (3780, 17691), (5670, 11794), (5897, 11340)]