77421820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{553013}}^1$

素因数の和:553029

約数の個数: 24

約数和(自身を含む): 185812704

約数和(自身を除く): 108390884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 553013, 1106026, 2212052, 2765065, 3871091, 5530130, 7742182, 11060260, 15484364, 19355455, 38710910, 77421820]

約数ペア:

[(1, 77421820), (2, 38710910), (4, 19355455), (5, 15484364), (7, 11060260), (10, 7742182), (14, 5530130), (20, 3871091), (28, 2765065), (35, 2212052), (70, 1106026), (140, 553013)]