4002800

素因数分解:

$2^4\times 5^2\times {\mathrm{10007}}^1$

素因数の和:10025

約数の個数: 30

約数和(自身を含む): 9617688

約数和(自身を除く): 5614888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 10007, 20014, 40028, 50035, 80056, 100070, 160112, 200140, 250175, 400280, 500350, 800560, 1000700, 2001400, 4002800]

約数ペア:

[(1, 4002800), (2, 2001400), (4, 1000700), (5, 800560), (8, 500350), (10, 400280), (16, 250175), (20, 200140), (25, 160112), (40, 100070), (50, 80056), (80, 50035), (100, 40028), (200, 20014), (400, 10007)]