61370840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{17239}}^1$

素因数の和:17339

約数の個数: 32

約数和(自身を含む): 139644000

約数和(自身を除く): 78273160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 17239, 34478, 68956, 86195, 137912, 172390, 344780, 689560, 1534271, 3068542, 6137084, 7671355, 12274168, 15342710, 30685420, 61370840]

約数ペア:

[(1, 61370840), (2, 30685420), (4, 15342710), (5, 12274168), (8, 7671355), (10, 6137084), (20, 3068542), (40, 1534271), (89, 689560), (178, 344780), (356, 172390), (445, 137912), (712, 86195), (890, 68956), (1780, 34478), (3560, 17239)]