2801960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{10007}}^1$

素因数の和:10025

約数の個数: 32

約数和(自身を含む): 7205760

約数和(自身を除く): 4403800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 10007, 20014, 40028, 50035, 70049, 80056, 100070, 140098, 200140, 280196, 350245, 400280, 560392, 700490, 1400980, 2801960]

約数ペア:

[(1, 2801960), (2, 1400980), (4, 700490), (5, 560392), (7, 400280), (8, 350245), (10, 280196), (14, 200140), (20, 140098), (28, 100070), (35, 80056), (40, 70049), (56, 50035), (70, 40028), (140, 20014), (280, 10007)]