208553920

素因数分解:

$2^6\times 5^1\times {\mathrm{651731}}^1$

素因数の和:651748

約数の個数: 28

約数和(自身を含む): 496619784

約数和(自身を除く): 288065864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 651731, 1303462, 2606924, 3258655, 5213848, 6517310, 10427696, 13034620, 20855392, 26069240, 41710784, 52138480, 104276960, 208553920]

約数ペア:

[(1, 208553920), (2, 104276960), (4, 52138480), (5, 41710784), (8, 26069240), (10, 20855392), (16, 13034620), (20, 10427696), (32, 6517310), (40, 5213848), (64, 3258655), (80, 2606924), (160, 1303462), (320, 651731)]