207823900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{1229}}^1$

素因数の和:1351

約数の個数: 72

約数和(自身を含む): 480438000

約数和(自身を除く): 272614100

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 100, 178, 190, 356, 380, 445, 475, 890, 950, 1229, 1691, 1780, 1900, 2225, 2458, 3382, 4450, 4916, 6145, 6764, 8455, 8900, 12290, 16910, 23351, 24580, 30725, 33820, 42275, 46702, 61450, 84550, 93404, 109381, 116755, 122900, 169100, 218762, 233510, 437524, 467020, 546905, 583775, 1093810, 1167550, 2078239, 2187620, 2335100, 2734525, 4156478, 5469050, 8312956, 10391195, 10938100, 20782390, 41564780, 51955975, 103911950, 207823900]

約数ペア:

[(1, 207823900), (2, 103911950), (4, 51955975), (5, 41564780), (10, 20782390), (19, 10938100), (20, 10391195), (25, 8312956), (38, 5469050), (50, 4156478), (76, 2734525), (89, 2335100), (95, 2187620), (100, 2078239), (178, 1167550), (190, 1093810), (356, 583775), (380, 546905), (445, 467020), (475, 437524), (890, 233510), (950, 218762), (1229, 169100), (1691, 122900), (1780, 116755), (1900, 109381), (2225, 93404), (2458, 84550), (3382, 61450), (4450, 46702), (4916, 42275), (6145, 33820), (6764, 30725), (8455, 24580), (8900, 23351), (12290, 16910)]