20989849685

素因数分解:

$5^1\times 7^1\times {\mathrm{719}}^1\times {\mathrm{859}}^1\times {\mathrm{971}}^1$

素因数の和:2561

約数の個数: 32

約数和(自身を含む): 28889395200

約数和(自身を除く): 7899545515

約数列:

[1, 5, 7, 35, 719, 859, 971, 3595, 4295, 4855, 5033, 6013, 6797, 25165, 30065, 33985, 617621, 698149, 834089, 3088105, 3490745, 4170445, 4323347, 4887043, 5838623, 21616735, 24435215, 29193115, 599709991, 2998549955, 4197969937, 20989849685]

約数ペア:

[(1, 20989849685), (5, 4197969937), (7, 2998549955), (35, 599709991), (719, 29193115), (859, 24435215), (971, 21616735), (3595, 5838623), (4295, 4887043), (4855, 4323347), (5033, 4170445), (6013, 3490745), (6797, 3088105), (25165, 834089), (30065, 698149), (33985, 617621)]