278350840

素因数分解:

$2^3\times 5^1\times {\mathrm{1973}}^1\times {\mathrm{3527}}^1$

素因数の和:5511

約数の個数: 32

約数和(自身を含む): 626784480

約数和(自身を除く): 348433640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1973, 3527, 3946, 7054, 7892, 9865, 14108, 15784, 17635, 19730, 28216, 35270, 39460, 70540, 78920, 141080, 6958771, 13917542, 27835084, 34793855, 55670168, 69587710, 139175420, 278350840]

約数ペア:

[(1, 278350840), (2, 139175420), (4, 69587710), (5, 55670168), (8, 34793855), (10, 27835084), (20, 13917542), (40, 6958771), (1973, 141080), (3527, 78920), (3946, 70540), (7054, 39460), (7892, 35270), (9865, 28216), (14108, 19730), (15784, 17635)]