18011420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18379}}^1$

素因数の和:18402

約数の個数: 36

約数和(自身を含む): 44001720

約数和(自身を除く): 25990300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18379, 36758, 73516, 91895, 128653, 183790, 257306, 367580, 514612, 643265, 900571, 1286530, 1801142, 2573060, 3602284, 4502855, 9005710, 18011420]

約数ペア:

[(1, 18011420), (2, 9005710), (4, 4502855), (5, 3602284), (7, 2573060), (10, 1801142), (14, 1286530), (20, 900571), (28, 643265), (35, 514612), (49, 367580), (70, 257306), (98, 183790), (140, 128653), (196, 91895), (245, 73516), (490, 36758), (980, 18379)]