28431500

素因数分解:

$2^2\times 5^3\times {\mathrm{101}}^1\times {\mathrm{563}}^1$

素因数の和:683

約数の個数: 48

約数和(自身を含む): 62820576

約数和(自身を除く): 34389076

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 125, 202, 250, 404, 500, 505, 563, 1010, 1126, 2020, 2252, 2525, 2815, 5050, 5630, 10100, 11260, 12625, 14075, 25250, 28150, 50500, 56300, 56863, 70375, 113726, 140750, 227452, 281500, 284315, 568630, 1137260, 1421575, 2843150, 5686300, 7107875, 14215750, 28431500]

約数ペア:

[(1, 28431500), (2, 14215750), (4, 7107875), (5, 5686300), (10, 2843150), (20, 1421575), (25, 1137260), (50, 568630), (100, 284315), (101, 281500), (125, 227452), (202, 140750), (250, 113726), (404, 70375), (500, 56863), (505, 56300), (563, 50500), (1010, 28150), (1126, 25250), (2020, 14075), (2252, 12625), (2525, 11260), (2815, 10100), (5050, 5630)]