129435880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{462271}}^1$

素因数の和:462289

約数の個数: 32

約数和(自身を含む): 332835840

約数和(自身を除く): 203399960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 462271, 924542, 1849084, 2311355, 3235897, 3698168, 4622710, 6471794, 9245420, 12943588, 16179485, 18490840, 25887176, 32358970, 64717940, 129435880]

約数ペア:

[(1, 129435880), (2, 64717940), (4, 32358970), (5, 25887176), (7, 18490840), (8, 16179485), (10, 12943588), (14, 9245420), (20, 6471794), (28, 4622710), (35, 3698168), (40, 3235897), (56, 2311355), (70, 1849084), (140, 924542), (280, 462271)]