79878820

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{81509}}^1$

素因数の和:81532

約数の個数: 36

約数和(自身を含む): 195134940

約数和(自身を除く): 115256120

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 81509, 163018, 326036, 407545, 570563, 815090, 1141126, 1630180, 2282252, 2852815, 3993941, 5705630, 7987882, 11411260, 15975764, 19969705, 39939410, 79878820]

約数ペア:

[(1, 79878820), (2, 39939410), (4, 19969705), (5, 15975764), (7, 11411260), (10, 7987882), (14, 5705630), (20, 3993941), (28, 2852815), (35, 2282252), (49, 1630180), (70, 1141126), (98, 815090), (140, 570563), (196, 407545), (245, 326036), (490, 163018), (980, 81509)]