20363504

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1609}}^1$

素因数の和:1737

約数の個数: 40

約数和(自身を含む): 45517920

約数和(自身を除く): 25154416

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1582, 1609, 1808, 3164, 3218, 6328, 6436, 11263, 12656, 12872, 22526, 25744, 45052, 90104, 180208, 181817, 363634, 727268, 1272719, 1454536, 2545438, 2909072, 5090876, 10181752, 20363504]

約数ペア:

[(1, 20363504), (2, 10181752), (4, 5090876), (7, 2909072), (8, 2545438), (14, 1454536), (16, 1272719), (28, 727268), (56, 363634), (112, 181817), (113, 180208), (226, 90104), (452, 45052), (791, 25744), (904, 22526), (1582, 12872), (1609, 12656), (1808, 11263), (3164, 6436), (3218, 6328)]