81923320

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{2309}}^1$

素因数の和:3207

約数の個数: 32

約数和(自身を含む): 184615200

約数和(自身を除く): 102691880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 2309, 3548, 4435, 4618, 7096, 8870, 9236, 11545, 17740, 18472, 23090, 35480, 46180, 92360, 2048083, 4096166, 8192332, 10240415, 16384664, 20480830, 40961660, 81923320]

約数ペア:

[(1, 81923320), (2, 40961660), (4, 20480830), (5, 16384664), (8, 10240415), (10, 8192332), (20, 4096166), (40, 2048083), (887, 92360), (1774, 46180), (2309, 35480), (3548, 23090), (4435, 18472), (4618, 17740), (7096, 11545), (8870, 9236)]