20068780

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{32369}}^1$

素因数の和:32409

約数の個数: 24

約数和(自身を含む): 43505280

約数和(自身を除く): 23436500

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 32369, 64738, 129476, 161845, 323690, 647380, 1003439, 2006878, 4013756, 5017195, 10034390, 20068780]

約数ペア:

[(1, 20068780), (2, 10034390), (4, 5017195), (5, 4013756), (10, 2006878), (20, 1003439), (31, 647380), (62, 323690), (124, 161845), (155, 129476), (310, 64738), (620, 32369)]