640548897

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{461}}^1\times {\mathrm{15971}}^1$

素因数の和:16464

約数の個数: 16

約数和(自身を含む): 885487680

約数和(自身を除く): 244938783

約数列:

[1, 3, 29, 87, 461, 1383, 13369, 15971, 40107, 47913, 463159, 1389477, 7362631, 22087893, 213516299, 640548897]

約数ペア:

[(1, 640548897), (3, 213516299), (29, 22087893), (87, 7362631), (461, 1389477), (1383, 463159), (13369, 47913), (15971, 40107)]