20648340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114713}}^1$

素因数の和:114728

約数の個数: 36

約数和(自身を含む): 62633844

約数和(自身を除く): 41985504

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114713, 229426, 344139, 458852, 573565, 688278, 1032417, 1147130, 1376556, 1720695, 2064834, 2294260, 3441390, 4129668, 5162085, 6882780, 10324170, 20648340]

約数ペア:

[(1, 20648340), (2, 10324170), (3, 6882780), (4, 5162085), (5, 4129668), (6, 3441390), (9, 2294260), (10, 2064834), (12, 1720695), (15, 1376556), (18, 1147130), (20, 1032417), (30, 688278), (36, 573565), (45, 458852), (60, 344139), (90, 229426), (180, 114713)]