278344690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{164701}}^1$

素因数の和:164734

約数の個数: 24

約数和(自身を含む): 542528388

約数和(自身を除く): 264183698

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 164701, 329402, 823505, 1647010, 2141113, 4282226, 10705565, 21411130, 27834469, 55668938, 139172345, 278344690]

約数ペア:

[(1, 278344690), (2, 139172345), (5, 55668938), (10, 27834469), (13, 21411130), (26, 10705565), (65, 4282226), (130, 2141113), (169, 1647010), (338, 823505), (845, 329402), (1690, 164701)]