19980424

素因数分解:

$2^3\times {\mathrm{83}}^1\times {\mathrm{30091}}^1$

素因数の和:30180

約数の個数: 16

約数和(自身を含む): 37915920

約数和(自身を除く): 17935496

約数列:

[1, 2, 4, 8, 83, 166, 332, 664, 30091, 60182, 120364, 240728, 2497553, 4995106, 9990212, 19980424]

約数ペア:

[(1, 19980424), (2, 9990212), (4, 4995106), (8, 2497553), (83, 240728), (166, 120364), (332, 60182), (664, 30091)]