1220804560

素因数分解:

$2^4\times 5^1\times {\mathrm{15260057}}^1$

素因数の和:15260070

約数の個数: 20

約数和(自身を含む): 2838370788

約数和(自身を除く): 1617566228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15260057, 30520114, 61040228, 76300285, 122080456, 152600570, 244160912, 305201140, 610402280, 1220804560]

約数ペア:

[(1, 1220804560), (2, 610402280), (4, 305201140), (5, 244160912), (8, 152600570), (10, 122080456), (16, 76300285), (20, 61040228), (40, 30520114), (80, 15260057)]