2779420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19853}}^1$

素因数の和:19869

約数の個数: 24

約数和(自身を含む): 6670944

約数和(自身を除く): 3891524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 19853, 39706, 79412, 99265, 138971, 198530, 277942, 397060, 555884, 694855, 1389710, 2779420]

約数ペア:

[(1, 2779420), (2, 1389710), (4, 694855), (5, 555884), (7, 397060), (10, 277942), (14, 198530), (20, 138971), (28, 99265), (35, 79412), (70, 39706), (140, 19853)]