19802019955

素因数分解:

$5^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1\times {\mathrm{160907}}^1$

素因数の和:161226

約数の個数: 16

約数和(自身を含む): 24066687744

約数和(自身を除く): 4264667789

約数列:

[1, 5, 151, 163, 755, 815, 24613, 123065, 160907, 804535, 24296957, 26227841, 121484785, 131139205, 3960403991, 19802019955]

約数ペア:

[(1, 19802019955), (5, 3960403991), (151, 131139205), (163, 121484785), (755, 26227841), (815, 24296957), (24613, 804535), (123065, 160907)]