19933180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{2549}}^1$

素因数の和:2598

約数の個数: 48

約数和(自身を含む): 46267200

約数和(自身を除く): 26334020

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 2549, 3910, 5098, 7820, 10196, 12745, 25490, 43333, 50980, 58627, 86666, 117254, 173332, 216665, 234508, 293135, 433330, 586270, 866660, 996659, 1172540, 1993318, 3986636, 4983295, 9966590, 19933180]

約数ペア:

[(1, 19933180), (2, 9966590), (4, 4983295), (5, 3986636), (10, 1993318), (17, 1172540), (20, 996659), (23, 866660), (34, 586270), (46, 433330), (68, 293135), (85, 234508), (92, 216665), (115, 173332), (170, 117254), (230, 86666), (340, 58627), (391, 50980), (460, 43333), (782, 25490), (1564, 12745), (1955, 10196), (2549, 7820), (3910, 5098)]