20296240

素因数分解:

$2^4\times 5^1\times {\mathrm{253703}}^1$

素因数の和:253716

約数の個数: 20

約数和(自身を含む): 47188944

約数和(自身を除く): 26892704

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253703, 507406, 1014812, 1268515, 2029624, 2537030, 4059248, 5074060, 10148120, 20296240]

約数ペア:

[(1, 20296240), (2, 10148120), (4, 5074060), (5, 4059248), (8, 2537030), (10, 2029624), (16, 1268515), (20, 1014812), (40, 507406), (80, 253703)]