28136560

素因数分解:

$2^4\times 5^1\times {\mathrm{351707}}^1$

素因数の和:351720

約数の個数: 20

約数和(自身を含む): 65417688

約数和(自身を除く): 37281128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 351707, 703414, 1406828, 1758535, 2813656, 3517070, 5627312, 7034140, 14068280, 28136560]

約数ペア:

[(1, 28136560), (2, 14068280), (4, 7034140), (5, 5627312), (8, 3517070), (10, 2813656), (16, 1758535), (20, 1406828), (40, 703414), (80, 351707)]