19802345

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:544

約数の個数: 16

約数和(自身を含む): 24295680

約数和(自身を除く): 4493335

約数列:

[1, 5, 73, 227, 239, 365, 1135, 1195, 16571, 17447, 54253, 82855, 87235, 271265, 3960469, 19802345]

約数ペア:

[(1, 19802345), (5, 3960469), (73, 271265), (227, 87235), (239, 82855), (365, 54253), (1135, 17447), (1195, 16571)]