28400560

素因数分解:

$2^4\times 5^1\times {\mathrm{355007}}^1$

素因数の和:355020

約数の個数: 20

約数和(自身を含む): 66031488

約数和(自身を除く): 37630928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 355007, 710014, 1420028, 1775035, 2840056, 3550070, 5680112, 7100140, 14200280, 28400560]

約数ペア:

[(1, 28400560), (2, 14200280), (4, 7100140), (5, 5680112), (8, 3550070), (10, 2840056), (16, 1775035), (20, 1420028), (40, 710014), (80, 355007)]