208394452

素因数分解:

$2^2\times 7^3\times {\mathrm{193}}^1\times {\mathrm{787}}^1$

素因数の和:1005

約数の個数: 48

約数和(自身を含む): 428041600

約数和(自身を除く): 219647148

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 193, 196, 343, 386, 686, 772, 787, 1351, 1372, 1574, 2702, 3148, 5404, 5509, 9457, 11018, 18914, 22036, 37828, 38563, 66199, 77126, 132398, 151891, 154252, 264796, 269941, 303782, 539882, 607564, 1063237, 1079764, 2126474, 4252948, 7442659, 14885318, 29770636, 52098613, 104197226, 208394452]

約数ペア:

[(1, 208394452), (2, 104197226), (4, 52098613), (7, 29770636), (14, 14885318), (28, 7442659), (49, 4252948), (98, 2126474), (193, 1079764), (196, 1063237), (343, 607564), (386, 539882), (686, 303782), (772, 269941), (787, 264796), (1351, 154252), (1372, 151891), (1574, 132398), (2702, 77126), (3148, 66199), (5404, 38563), (5509, 37828), (9457, 22036), (11018, 18914)]