159780040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{570643}}^1$

素因数の和:570661

約数の個数: 32

約数和(自身を含む): 410863680

約数和(自身を除く): 251083640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 570643, 1141286, 2282572, 2853215, 3994501, 4565144, 5706430, 7989002, 11412860, 15978004, 19972505, 22825720, 31956008, 39945010, 79890020, 159780040]

約数ペア:

[(1, 159780040), (2, 79890020), (4, 39945010), (5, 31956008), (7, 22825720), (8, 19972505), (10, 15978004), (14, 11412860), (20, 7989002), (28, 5706430), (35, 4565144), (40, 3994501), (56, 2853215), (70, 2282572), (140, 1141286), (280, 570643)]