64190840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{229253}}^1$

素因数の和:229271

約数の個数: 32

約数和(自身を含む): 165062880

約数和(自身を除く): 100872040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 229253, 458506, 917012, 1146265, 1604771, 1834024, 2292530, 3209542, 4585060, 6419084, 8023855, 9170120, 12838168, 16047710, 32095420, 64190840]

約数ペア:

[(1, 64190840), (2, 32095420), (4, 16047710), (5, 12838168), (7, 9170120), (8, 8023855), (10, 6419084), (14, 4585060), (20, 3209542), (28, 2292530), (35, 1834024), (40, 1604771), (56, 1146265), (70, 917012), (140, 458506), (280, 229253)]