81317993820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193614271}}^1$

素因数の和:193614290

約数の個数: 48

約数和(自身を含む): 260217581568

約数和(自身を除く): 178899587748

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 193614271, 387228542, 580842813, 774457084, 968071355, 1161685626, 1355299897, 1936142710, 2323371252, 2710599794, 2904214065, 3872285420, 4065899691, 5421199588, 5808428130, 6776499485, 8131799382, 11616856260, 13552998970, 16263598764, 20329498455, 27105997940, 40658996910, 81317993820]

約数ペア:

[(1, 81317993820), (2, 40658996910), (3, 27105997940), (4, 20329498455), (5, 16263598764), (6, 13552998970), (7, 11616856260), (10, 8131799382), (12, 6776499485), (14, 5808428130), (15, 5421199588), (20, 4065899691), (21, 3872285420), (28, 2904214065), (30, 2710599794), (35, 2323371252), (42, 1936142710), (60, 1355299897), (70, 1161685626), (84, 968071355), (105, 774457084), (140, 580842813), (210, 387228542), (420, 193614271)]