291409820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1120807}}^1$

素因数の和:1120829

約数の個数: 24

約数和(自身を含む): 659035104

約数和(自身を除く): 367625284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1120807, 2241614, 4483228, 5604035, 11208070, 14570491, 22416140, 29140982, 58281964, 72852455, 145704910, 291409820]

約数ペア:

[(1, 291409820), (2, 145704910), (4, 72852455), (5, 58281964), (10, 29140982), (13, 22416140), (20, 14570491), (26, 11208070), (52, 5604035), (65, 4483228), (130, 2241614), (260, 1120807)]