66212440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{2657}}^1$

素因数の和:2764

約数の個数: 64

約数和(自身を含む): 172238400

約数和(自身を除く): 106025960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 89, 140, 178, 280, 356, 445, 623, 712, 890, 1246, 1780, 2492, 2657, 3115, 3560, 4984, 5314, 6230, 10628, 12460, 13285, 18599, 21256, 24920, 26570, 37198, 53140, 74396, 92995, 106280, 148792, 185990, 236473, 371980, 472946, 743960, 945892, 1182365, 1655311, 1891784, 2364730, 3310622, 4729460, 6621244, 8276555, 9458920, 13242488, 16553110, 33106220, 66212440]

約数ペア:

[(1, 66212440), (2, 33106220), (4, 16553110), (5, 13242488), (7, 9458920), (8, 8276555), (10, 6621244), (14, 4729460), (20, 3310622), (28, 2364730), (35, 1891784), (40, 1655311), (56, 1182365), (70, 945892), (89, 743960), (140, 472946), (178, 371980), (280, 236473), (356, 185990), (445, 148792), (623, 106280), (712, 92995), (890, 74396), (1246, 53140), (1780, 37198), (2492, 26570), (2657, 24920), (3115, 21256), (3560, 18599), (4984, 13285), (5314, 12460), (6230, 10628)]