9919420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{70853}}^1$

素因数の和:70869

約数の個数: 24

約数和(自身を含む): 23806944

約数和(自身を除く): 13887524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 70853, 141706, 283412, 354265, 495971, 708530, 991942, 1417060, 1983884, 2479855, 4959710, 9919420]

約数ペア:

[(1, 9919420), (2, 4959710), (4, 2479855), (5, 1983884), (7, 1417060), (10, 991942), (14, 708530), (20, 495971), (28, 354265), (35, 283412), (70, 141706), (140, 70853)]