28894870

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{40697}}^1$

素因数の和:40775

約数の個数: 16

約数和(自身を含む): 52744608

約数和(自身を除く): 23849738

約数列:

[1, 2, 5, 10, 71, 142, 355, 710, 40697, 81394, 203485, 406970, 2889487, 5778974, 14447435, 28894870]

約数ペア:

[(1, 28894870), (2, 14447435), (5, 5778974), (10, 2889487), (71, 406970), (142, 203485), (355, 81394), (710, 40697)]