20178992

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{12487}}^1$

素因数の和:12596

約数の個数: 20

約数和(自身を含む): 39487056

約数和(自身を除く): 19308064

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 12487, 24974, 49948, 99896, 199792, 1261187, 2522374, 5044748, 10089496, 20178992]

約数ペア:

[(1, 20178992), (2, 10089496), (4, 5044748), (8, 2522374), (16, 1261187), (101, 199792), (202, 99896), (404, 49948), (808, 24974), (1616, 12487)]