20160416

素因数分解:

$2^5\times {\mathrm{31}}^1\times {\mathrm{20323}}^1$

素因数の和:20364

約数の個数: 24

約数和(自身を含む): 40973184

約数和(自身を除く): 20812768

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992, 20323, 40646, 81292, 162584, 325168, 630013, 650336, 1260026, 2520052, 5040104, 10080208, 20160416]

約数ペア:

[(1, 20160416), (2, 10080208), (4, 5040104), (8, 2520052), (16, 1260026), (31, 650336), (32, 630013), (62, 325168), (124, 162584), (248, 81292), (496, 40646), (992, 20323)]