399065828

素因数分解:

$2^2\times 7^1\times {\mathrm{113}}^1\times {\mathrm{126127}}^1$

素因数の和:126251

約数の個数: 24

約数和(自身を含む): 805201152

約数和(自身を除く): 406135324

約数列:

[1, 2, 4, 7, 14, 28, 113, 226, 452, 791, 1582, 3164, 126127, 252254, 504508, 882889, 1765778, 3531556, 14252351, 28504702, 57009404, 99766457, 199532914, 399065828]

約数ペア:

[(1, 399065828), (2, 199532914), (4, 99766457), (7, 57009404), (14, 28504702), (28, 14252351), (113, 3531556), (226, 1765778), (452, 882889), (791, 504508), (1582, 252254), (3164, 126127)]