19891920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{82883}}^1$

素因数の和:82899

約数の個数: 40

約数和(自身を含む): 61665696

約数和(自身を除く): 41773776

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 82883, 165766, 248649, 331532, 414415, 497298, 663064, 828830, 994596, 1243245, 1326128, 1657660, 1989192, 2486490, 3315320, 3978384, 4972980, 6630640, 9945960, 19891920]

約数ペア:

[(1, 19891920), (2, 9945960), (3, 6630640), (4, 4972980), (5, 3978384), (6, 3315320), (8, 2486490), (10, 1989192), (12, 1657660), (15, 1326128), (16, 1243245), (20, 994596), (24, 828830), (30, 663064), (40, 497298), (48, 414415), (60, 331532), (80, 248649), (120, 165766), (240, 82883)]