123784380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{687691}}^1$

素因数の和:687706

約数の個数: 36

約数和(自身を含む): 375479832

約数和(自身を除く): 251695452

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 687691, 1375382, 2063073, 2750764, 3438455, 4126146, 6189219, 6876910, 8252292, 10315365, 12378438, 13753820, 20630730, 24756876, 30946095, 41261460, 61892190, 123784380]

約数ペア:

[(1, 123784380), (2, 61892190), (3, 41261460), (4, 30946095), (5, 24756876), (6, 20630730), (9, 13753820), (10, 12378438), (12, 10315365), (15, 8252292), (18, 6876910), (20, 6189219), (30, 4126146), (36, 3438455), (45, 2750764), (60, 2063073), (90, 1375382), (180, 687691)]