1290759820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{9219713}}^1$

素因数の和:9219729

約数の個数: 24

約数和(自身を含む): 3097823904

約数和(自身を除く): 1807064084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 9219713, 18439426, 36878852, 46098565, 64537991, 92197130, 129075982, 184394260, 258151964, 322689955, 645379910, 1290759820]

約数ペア:

[(1, 1290759820), (2, 645379910), (4, 322689955), (5, 258151964), (7, 184394260), (10, 129075982), (14, 92197130), (20, 64537991), (28, 46098565), (35, 36878852), (70, 18439426), (140, 9219713)]