207718820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{74719}}^1$

素因数の和:74867

約数の個数: 24

約数和(自身を含む): 439353600

約数和(自身を除く): 231634780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 74719, 149438, 298876, 373595, 747190, 1494380, 10385941, 20771882, 41543764, 51929705, 103859410, 207718820]

約数ペア:

[(1, 207718820), (2, 103859410), (4, 51929705), (5, 41543764), (10, 20771882), (20, 10385941), (139, 1494380), (278, 747190), (556, 373595), (695, 298876), (1390, 149438), (2780, 74719)]