1814315690840

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{509639239}}^1$

素因数の和:509639339

約数の個数: 32

約数和(自身を含む): 4128077844000

約数和(自身を除く): 2313762153160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3560, 509639239, 1019278478, 2038556956, 2548196195, 4077113912, 5096392390, 10192784780, 20385569560, 45357892271, 90715784542, 181431569084, 226789461355, 362863138168, 453578922710, 907157845420, 1814315690840]

約数ペア:

[(1, 1814315690840), (2, 907157845420), (4, 453578922710), (5, 362863138168), (8, 226789461355), (10, 181431569084), (20, 90715784542), (40, 45357892271), (89, 20385569560), (178, 10192784780), (356, 5096392390), (445, 4077113912), (712, 2548196195), (890, 2038556956), (1780, 1019278478), (3560, 509639239)]