290726514

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{1242421}}^1$

素因数の和:1242442

約数の個数: 24

約数和(自身を含む): 678362412

約数和(自身を除く): 387635898

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 1242421, 2484842, 3727263, 7454526, 11181789, 16151473, 22363578, 32302946, 48454419, 96908838, 145363257, 290726514]

約数ペア:

[(1, 290726514), (2, 145363257), (3, 96908838), (6, 48454419), (9, 32302946), (13, 22363578), (18, 16151473), (26, 11181789), (39, 7454526), (78, 3727263), (117, 2484842), (234, 1242421)]