83852720

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21391}}^1$

素因数の和:21418

約数の個数: 60

約数和(自身を含む): 226797984

約数和(自身を除く): 142945264

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21391, 42782, 85564, 106955, 149737, 171128, 213910, 299474, 342256, 427820, 598948, 748685, 855640, 1048159, 1197896, 1497370, 1711280, 2096318, 2395792, 2994740, 4192636, 5240795, 5989480, 8385272, 10481590, 11978960, 16770544, 20963180, 41926360, 83852720]

約数ペア:

[(1, 83852720), (2, 41926360), (4, 20963180), (5, 16770544), (7, 11978960), (8, 10481590), (10, 8385272), (14, 5989480), (16, 5240795), (20, 4192636), (28, 2994740), (35, 2395792), (40, 2096318), (49, 1711280), (56, 1497370), (70, 1197896), (80, 1048159), (98, 855640), (112, 748685), (140, 598948), (196, 427820), (245, 342256), (280, 299474), (392, 213910), (490, 171128), (560, 149737), (784, 106955), (980, 85564), (1960, 42782), (3920, 21391)]