156901439440

素因数分解:

$2^4\times 5^1\times {\mathrm{1961267993}}^1$

素因数の和:1961268006

約数の個数: 20

約数和(自身を含む): 364795846884

約数和(自身を除く): 207894407444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1961267993, 3922535986, 7845071972, 9806339965, 15690143944, 19612679930, 31380287888, 39225359860, 78450719720, 156901439440]

約数ペア:

[(1, 156901439440), (2, 78450719720), (4, 39225359860), (5, 31380287888), (8, 19612679930), (10, 15690143944), (16, 9806339965), (20, 7845071972), (40, 3922535986), (80, 1961267993)]