17965780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{128327}}^1$

素因数の和:128343

約数の個数: 24

約数和(自身を含む): 43118208

約数和(自身を除く): 25152428

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 128327, 256654, 513308, 641635, 898289, 1283270, 1796578, 2566540, 3593156, 4491445, 8982890, 17965780]

約数ペア:

[(1, 17965780), (2, 8982890), (4, 4491445), (5, 3593156), (7, 2566540), (10, 1796578), (14, 1283270), (20, 898289), (28, 641635), (35, 513308), (70, 256654), (140, 128327)]