129600320

素因数分解:

$2^6\times 5^1\times {\mathrm{405001}}^1$

素因数の和:405018

約数の個数: 28

約数和(自身を含む): 308611524

約数和(自身を除く): 179011204

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 405001, 810002, 1620004, 2025005, 3240008, 4050010, 6480016, 8100020, 12960032, 16200040, 25920064, 32400080, 64800160, 129600320]

約数ペア:

[(1, 129600320), (2, 64800160), (4, 32400080), (5, 25920064), (8, 16200040), (10, 12960032), (16, 8100020), (20, 6480016), (32, 4050010), (40, 3240008), (64, 2025005), (80, 1620004), (160, 810002), (320, 405001)]