89181920

素因数分解:

$2^5\times 5^1\times {\mathrm{353}}^1\times {\mathrm{1579}}^1$

素因数の和:1947

約数の個数: 48

約数和(自身を含む): 211422960

約数和(自身を除く): 122241040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 353, 706, 1412, 1579, 1765, 2824, 3158, 3530, 5648, 6316, 7060, 7895, 11296, 12632, 14120, 15790, 25264, 28240, 31580, 50528, 56480, 63160, 126320, 252640, 557387, 1114774, 2229548, 2786935, 4459096, 5573870, 8918192, 11147740, 17836384, 22295480, 44590960, 89181920]

約数ペア:

[(1, 89181920), (2, 44590960), (4, 22295480), (5, 17836384), (8, 11147740), (10, 8918192), (16, 5573870), (20, 4459096), (32, 2786935), (40, 2229548), (80, 1114774), (160, 557387), (353, 252640), (706, 126320), (1412, 63160), (1579, 56480), (1765, 50528), (2824, 31580), (3158, 28240), (3530, 25264), (5648, 15790), (6316, 14120), (7060, 12632), (7895, 11296)]