278344820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1070557}}^1$

素因数の和:1070579

約数の個数: 24

約数和(自身を含む): 629488104

約数和(自身を除く): 351143284

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1070557, 2141114, 4282228, 5352785, 10705570, 13917241, 21411140, 27834482, 55668964, 69586205, 139172410, 278344820]

約数ペア:

[(1, 278344820), (2, 139172410), (4, 69586205), (5, 55668964), (10, 27834482), (13, 21411140), (20, 13917241), (26, 10705570), (52, 5352785), (65, 4282228), (130, 2141114), (260, 1070557)]