812420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{829}}^1$

素因数の和:852

約数の個数: 36

約数和(自身を含む): 1987020

約数和(自身を除く): 1174600

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 829, 980, 1658, 3316, 4145, 5803, 8290, 11606, 16580, 23212, 29015, 40621, 58030, 81242, 116060, 162484, 203105, 406210, 812420]

約数ペア:

[(1, 812420), (2, 406210), (4, 203105), (5, 162484), (7, 116060), (10, 81242), (14, 58030), (20, 40621), (28, 29015), (35, 23212), (49, 16580), (70, 11606), (98, 8290), (140, 5803), (196, 4145), (245, 3316), (490, 1658), (829, 980)]