20210921000

素因数分解:

$2^3\times 5^3\times {\mathrm{89}}^1\times {\mathrm{227089}}^1$

素因数の和:227199

約数の個数: 64

約数和(自身を含む): 47825154000

約数和(自身を除く): 27614233000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 89, 100, 125, 178, 200, 250, 356, 445, 500, 712, 890, 1000, 1780, 2225, 3560, 4450, 8900, 11125, 17800, 22250, 44500, 89000, 227089, 454178, 908356, 1135445, 1816712, 2270890, 4541780, 5677225, 9083560, 11354450, 20210921, 22708900, 28386125, 40421842, 45417800, 56772250, 80843684, 101054605, 113544500, 161687368, 202109210, 227089000, 404218420, 505273025, 808436840, 1010546050, 2021092100, 2526365125, 4042184200, 5052730250, 10105460500, 20210921000]

約数ペア:

[(1, 20210921000), (2, 10105460500), (4, 5052730250), (5, 4042184200), (8, 2526365125), (10, 2021092100), (20, 1010546050), (25, 808436840), (40, 505273025), (50, 404218420), (89, 227089000), (100, 202109210), (125, 161687368), (178, 113544500), (200, 101054605), (250, 80843684), (356, 56772250), (445, 45417800), (500, 40421842), (712, 28386125), (890, 22708900), (1000, 20210921), (1780, 11354450), (2225, 9083560), (3560, 5677225), (4450, 4541780), (8900, 2270890), (11125, 1816712), (17800, 1135445), (22250, 908356), (44500, 454178), (89000, 227089)]