18688760

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{16111}}^1$

素因数の和:16151

約数の個数: 32

約数和(自身を含む): 43502400

約数和(自身を除く): 24813640

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 16111, 32222, 64444, 80555, 128888, 161110, 322220, 467219, 644440, 934438, 1868876, 2336095, 3737752, 4672190, 9344380, 18688760]

約数ペア:

[(1, 18688760), (2, 9344380), (4, 4672190), (5, 3737752), (8, 2336095), (10, 1868876), (20, 934438), (29, 644440), (40, 467219), (58, 322220), (116, 161110), (145, 128888), (232, 80555), (290, 64444), (580, 32222), (1160, 16111)]