39420780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1997}}^1$

素因数の和:2063

約数の個数: 96

約数和(自身を含む): 128894976

約数和(自身を除く): 89474196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1316, 1410, 1645, 1974, 1997, 2820, 3290, 3948, 3994, 4935, 5991, 6580, 7988, 9870, 9985, 11982, 13979, 19740, 19970, 23964, 27958, 29955, 39940, 41937, 55916, 59910, 69895, 83874, 93859, 119820, 139790, 167748, 187718, 209685, 279580, 281577, 375436, 419370, 469295, 563154, 657013, 838740, 938590, 1126308, 1314026, 1407885, 1877180, 1971039, 2628052, 2815770, 3285065, 3942078, 5631540, 6570130, 7884156, 9855195, 13140260, 19710390, 39420780]

約数ペア:

[(1, 39420780), (2, 19710390), (3, 13140260), (4, 9855195), (5, 7884156), (6, 6570130), (7, 5631540), (10, 3942078), (12, 3285065), (14, 2815770), (15, 2628052), (20, 1971039), (21, 1877180), (28, 1407885), (30, 1314026), (35, 1126308), (42, 938590), (47, 838740), (60, 657013), (70, 563154), (84, 469295), (94, 419370), (105, 375436), (140, 281577), (141, 279580), (188, 209685), (210, 187718), (235, 167748), (282, 139790), (329, 119820), (420, 93859), (470, 83874), (564, 69895), (658, 59910), (705, 55916), (940, 41937), (987, 39940), (1316, 29955), (1410, 27958), (1645, 23964), (1974, 19970), (1997, 19740), (2820, 13979), (3290, 11982), (3948, 9985), (3994, 9870), (4935, 7988), (5991, 6580)]