28005370

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{25693}}^1$

素因数の和:25809

約数の個数: 16

約数和(自身を含む): 50874120

約数和(自身を除く): 22868750

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 25693, 51386, 128465, 256930, 2800537, 5601074, 14002685, 28005370]

約数ペア:

[(1, 28005370), (2, 14002685), (5, 5601074), (10, 2800537), (109, 256930), (218, 128465), (545, 51386), (1090, 25693)]