28040240

素因数分解:

$2^4\times 5^1\times {\mathrm{350503}}^1$

素因数の和:350516

約数の個数: 20

約数和(自身を含む): 65193744

約数和(自身を除く): 37153504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 350503, 701006, 1402012, 1752515, 2804024, 3505030, 5608048, 7010060, 14020120, 28040240]

約数ペア:

[(1, 28040240), (2, 14020120), (4, 7010060), (5, 5608048), (8, 3505030), (10, 2804024), (16, 1752515), (20, 1402012), (40, 701006), (80, 350503)]