78961820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{564013}}^1$

素因数の和:564029

約数の個数: 24

約数和(自身を含む): 189508704

約数和(自身を除く): 110546884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 564013, 1128026, 2256052, 2820065, 3948091, 5640130, 7896182, 11280260, 15792364, 19740455, 39480910, 78961820]

約数ペア:

[(1, 78961820), (2, 39480910), (4, 19740455), (5, 15792364), (7, 11280260), (10, 7896182), (14, 5640130), (20, 3948091), (28, 2820065), (35, 2256052), (70, 1128026), (140, 564013)]