21945400

素因数分解:

$2^3\times 5^2\times {\mathrm{179}}^1\times {\mathrm{613}}^1$

素因数の和:808

約数の個数: 48

約数和(自身を含む): 51391800

約数和(自身を除く): 29446400

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 179, 200, 358, 613, 716, 895, 1226, 1432, 1790, 2452, 3065, 3580, 4475, 4904, 6130, 7160, 8950, 12260, 15325, 17900, 24520, 30650, 35800, 61300, 109727, 122600, 219454, 438908, 548635, 877816, 1097270, 2194540, 2743175, 4389080, 5486350, 10972700, 21945400]

約数ペア:

[(1, 21945400), (2, 10972700), (4, 5486350), (5, 4389080), (8, 2743175), (10, 2194540), (20, 1097270), (25, 877816), (40, 548635), (50, 438908), (100, 219454), (179, 122600), (200, 109727), (358, 61300), (613, 35800), (716, 30650), (895, 24520), (1226, 17900), (1432, 15325), (1790, 12260), (2452, 8950), (3065, 7160), (3580, 6130), (4475, 4904)]