19782760

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21503}}^1$

素因数の和:21537

約数の個数: 32

約数和(自身を含む): 46448640

約数和(自身を除く): 26665880

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21503, 43006, 86012, 107515, 172024, 215030, 430060, 494569, 860120, 989138, 1978276, 2472845, 3956552, 4945690, 9891380, 19782760]

約数ペア:

[(1, 19782760), (2, 9891380), (4, 4945690), (5, 3956552), (8, 2472845), (10, 1978276), (20, 989138), (23, 860120), (40, 494569), (46, 430060), (92, 215030), (115, 172024), (184, 107515), (230, 86012), (460, 43006), (920, 21503)]