123209960

素因数分解:

$2^3\times 5^1\times {\mathrm{151}}^1\times {\mathrm{20399}}^1$

素因数の和:20561

約数の個数: 32

約数和(自身を含む): 279072000

約数和(自身を除く): 155862040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 151, 302, 604, 755, 1208, 1510, 3020, 6040, 20399, 40798, 81596, 101995, 163192, 203990, 407980, 815960, 3080249, 6160498, 12320996, 15401245, 24641992, 30802490, 61604980, 123209960]

約数ペア:

[(1, 123209960), (2, 61604980), (4, 30802490), (5, 24641992), (8, 15401245), (10, 12320996), (20, 6160498), (40, 3080249), (151, 815960), (302, 407980), (604, 203990), (755, 163192), (1208, 101995), (1510, 81596), (3020, 40798), (6040, 20399)]