31688144

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{19609}}^1$

素因数の和:19718

約数の個数: 20

約数和(自身を含む): 62006820

約数和(自身を除く): 30318676

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 19609, 39218, 78436, 156872, 313744, 1980509, 3961018, 7922036, 15844072, 31688144]

約数ペア:

[(1, 31688144), (2, 15844072), (4, 7922036), (8, 3961018), (16, 1980509), (101, 313744), (202, 156872), (404, 78436), (808, 39218), (1616, 19609)]