28420240

素因数分解:

$2^4\times 5^1\times {\mathrm{563}}^1\times {\mathrm{631}}^1$

素因数の和:1207

約数の個数: 40

約数和(自身を含む): 66299328

約数和(自身を除く): 37879088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 563, 631, 1126, 1262, 2252, 2524, 2815, 3155, 4504, 5048, 5630, 6310, 9008, 10096, 11260, 12620, 22520, 25240, 45040, 50480, 355253, 710506, 1421012, 1776265, 2842024, 3552530, 5684048, 7105060, 14210120, 28420240]

約数ペア:

[(1, 28420240), (2, 14210120), (4, 7105060), (5, 5684048), (8, 3552530), (10, 2842024), (16, 1776265), (20, 1421012), (40, 710506), (80, 355253), (563, 50480), (631, 45040), (1126, 25240), (1262, 22520), (2252, 12620), (2524, 11260), (2815, 10096), (3155, 9008), (4504, 6310), (5048, 5630)]