27749620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{787}}^1$

素因数の和:880

約数の個数: 48

約数和(自身を含む): 61161408

約数和(自身を除く): 33411788

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 82, 86, 164, 172, 205, 215, 410, 430, 787, 820, 860, 1574, 1763, 3148, 3526, 3935, 7052, 7870, 8815, 15740, 17630, 32267, 33841, 35260, 64534, 67682, 129068, 135364, 161335, 169205, 322670, 338410, 645340, 676820, 1387481, 2774962, 5549924, 6937405, 13874810, 27749620]

約数ペア:

[(1, 27749620), (2, 13874810), (4, 6937405), (5, 5549924), (10, 2774962), (20, 1387481), (41, 676820), (43, 645340), (82, 338410), (86, 322670), (164, 169205), (172, 161335), (205, 135364), (215, 129068), (410, 67682), (430, 64534), (787, 35260), (820, 33841), (860, 32267), (1574, 17630), (1763, 15740), (3148, 8815), (3526, 7870), (3935, 7052)]