321509020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{4391}}^1$

素因数の和:4930

約数の個数: 48

約数和(自身を含む): 773273088

約数和(自身を除く): 451764068

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 523, 1046, 2092, 2615, 3661, 4391, 5230, 7322, 8782, 10460, 14644, 17564, 18305, 21955, 30737, 36610, 43910, 61474, 73220, 87820, 122948, 153685, 307370, 614740, 2296493, 4592986, 9185972, 11482465, 16075451, 22964930, 32150902, 45929860, 64301804, 80377255, 160754510, 321509020]

約数ペア:

[(1, 321509020), (2, 160754510), (4, 80377255), (5, 64301804), (7, 45929860), (10, 32150902), (14, 22964930), (20, 16075451), (28, 11482465), (35, 9185972), (70, 4592986), (140, 2296493), (523, 614740), (1046, 307370), (2092, 153685), (2615, 122948), (3661, 87820), (4391, 73220), (5230, 61474), (7322, 43910), (8782, 36610), (10460, 30737), (14644, 21955), (17564, 18305)]