331640240

素因数分解:

$2^4\times 5^1\times {\mathrm{4145503}}^1$

素因数の和:4145516

約数の個数: 20

約数和(自身を含む): 771063744

約数和(自身を除く): 439423504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4145503, 8291006, 16582012, 20727515, 33164024, 41455030, 66328048, 82910060, 165820120, 331640240]

約数ペア:

[(1, 331640240), (2, 165820120), (4, 82910060), (5, 66328048), (8, 41455030), (10, 33164024), (16, 20727515), (20, 16582012), (40, 8291006), (80, 4145503)]