18641980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{133157}}^1$

素因数の和:133173

約数の個数: 24

約数和(自身を含む): 44741088

約数和(自身を除く): 26099108

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 133157, 266314, 532628, 665785, 932099, 1331570, 1864198, 2663140, 3728396, 4660495, 9320990, 18641980]

約数ペア:

[(1, 18641980), (2, 9320990), (4, 4660495), (5, 3728396), (7, 2663140), (10, 1864198), (14, 1331570), (20, 932099), (28, 665785), (35, 532628), (70, 266314), (140, 133157)]