385846580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{393721}}^1$

素因数の和:393744

約数の個数: 36

約数和(自身を含む): 942570468

約数和(自身を除く): 556723888

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 393721, 787442, 1574884, 1968605, 2756047, 3937210, 5512094, 7874420, 11024188, 13780235, 19292329, 27560470, 38584658, 55120940, 77169316, 96461645, 192923290, 385846580]

約数ペア:

[(1, 385846580), (2, 192923290), (4, 96461645), (5, 77169316), (7, 55120940), (10, 38584658), (14, 27560470), (20, 19292329), (28, 13780235), (35, 11024188), (49, 7874420), (70, 5512094), (98, 3937210), (140, 2756047), (196, 1968605), (245, 1574884), (490, 787442), (980, 393721)]