19819420

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{26783}}^1$

素因数の和:26829

約数の個数: 24

約数和(自身を含む): 42747264

約数和(自身を除く): 22927844

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 26783, 53566, 107132, 133915, 267830, 535660, 990971, 1981942, 3963884, 4954855, 9909710, 19819420]

約数ペア:

[(1, 19819420), (2, 9909710), (4, 4954855), (5, 3963884), (10, 1981942), (20, 990971), (37, 535660), (74, 267830), (148, 133915), (185, 107132), (370, 53566), (740, 26783)]