278301140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1070389}}^1$

素因数の和:1070411

約数の個数: 24

約数和(自身を含む): 629389320

約数和(自身を除く): 351088180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1070389, 2140778, 4281556, 5351945, 10703890, 13915057, 21407780, 27830114, 55660228, 69575285, 139150570, 278301140]

約数ペア:

[(1, 278301140), (2, 139150570), (4, 69575285), (5, 55660228), (10, 27830114), (13, 21407780), (20, 13915057), (26, 10703890), (52, 5351945), (65, 4281556), (130, 2140778), (260, 1070389)]