68971420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{70379}}^1$

素因数の和:70402

約数の個数: 36

約数和(自身を含む): 168489720

約数和(自身を除く): 99518300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 70379, 140758, 281516, 351895, 492653, 703790, 985306, 1407580, 1970612, 2463265, 3448571, 4926530, 6897142, 9853060, 13794284, 17242855, 34485710, 68971420]

約数ペア:

[(1, 68971420), (2, 34485710), (4, 17242855), (5, 13794284), (7, 9853060), (10, 6897142), (14, 4926530), (20, 3448571), (28, 2463265), (35, 1970612), (49, 1407580), (70, 985306), (98, 703790), (140, 492653), (196, 351895), (245, 281516), (490, 140758), (980, 70379)]