28698985

素因数分解:

$5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{3677}}^1$

素因数の和:3912

約数の個数: 16

約数和(自身を含む): 39545856

約数和(自身を除く): 10846871

約数列:

[1, 5, 7, 35, 223, 1115, 1561, 3677, 7805, 18385, 25739, 128695, 819971, 4099855, 5739797, 28698985]

約数ペア:

[(1, 28698985), (5, 5739797), (7, 4099855), (35, 819971), (223, 128695), (1115, 25739), (1561, 18385), (3677, 7805)]