63808420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245417}}^1$

素因数の和:245439

約数の個数: 24

約数和(自身を含む): 144305784

約数和(自身を除く): 80497364

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 245417, 490834, 981668, 1227085, 2454170, 3190421, 4908340, 6380842, 12761684, 15952105, 31904210, 63808420]

約数ペア:

[(1, 63808420), (2, 31904210), (4, 15952105), (5, 12761684), (10, 6380842), (13, 4908340), (20, 3190421), (26, 2454170), (52, 1227085), (65, 981668), (130, 490834), (260, 245417)]