245031920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{437557}}^1$

素因数の和:437577

約数の個数: 40

約数和(自身を含む): 651086304

約数和(自身を除く): 406054384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 437557, 875114, 1750228, 2187785, 3062899, 3500456, 4375570, 6125798, 7000912, 8751140, 12251596, 15314495, 17502280, 24503192, 30628990, 35004560, 49006384, 61257980, 122515960, 245031920]

約数ペア:

[(1, 245031920), (2, 122515960), (4, 61257980), (5, 49006384), (7, 35004560), (8, 30628990), (10, 24503192), (14, 17502280), (16, 15314495), (20, 12251596), (28, 8751140), (35, 7000912), (40, 6125798), (56, 4375570), (70, 3500456), (80, 3062899), (112, 2187785), (140, 1750228), (280, 875114), (560, 437557)]