1823780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{1861}}^1$

素因数の和:1884

約数の個数: 36

約数和(自身を含む): 4457628

約数和(自身を除く): 2633848

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 1861, 3722, 7444, 9305, 13027, 18610, 26054, 37220, 52108, 65135, 91189, 130270, 182378, 260540, 364756, 455945, 911890, 1823780]

約数ペア:

[(1, 1823780), (2, 911890), (4, 455945), (5, 364756), (7, 260540), (10, 182378), (14, 130270), (20, 91189), (28, 65135), (35, 52108), (49, 37220), (70, 26054), (98, 18610), (140, 13027), (196, 9305), (245, 7444), (490, 3722), (980, 1861)]