21886000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:407

約数の個数: 80

約数和(自身を含む): 54782208

約数和(自身を除く): 32896208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 155, 200, 248, 250, 310, 353, 400, 496, 500, 620, 706, 775, 1000, 1240, 1412, 1550, 1765, 2000, 2480, 2824, 3100, 3530, 3875, 5648, 6200, 7060, 7750, 8825, 10943, 12400, 14120, 15500, 17650, 21886, 28240, 31000, 35300, 43772, 44125, 54715, 62000, 70600, 87544, 88250, 109430, 141200, 175088, 176500, 218860, 273575, 353000, 437720, 547150, 706000, 875440, 1094300, 1367875, 2188600, 2735750, 4377200, 5471500, 10943000, 21886000]

約数ペア:

[(1, 21886000), (2, 10943000), (4, 5471500), (5, 4377200), (8, 2735750), (10, 2188600), (16, 1367875), (20, 1094300), (25, 875440), (31, 706000), (40, 547150), (50, 437720), (62, 353000), (80, 273575), (100, 218860), (124, 176500), (125, 175088), (155, 141200), (200, 109430), (248, 88250), (250, 87544), (310, 70600), (353, 62000), (400, 54715), (496, 44125), (500, 43772), (620, 35300), (706, 31000), (775, 28240), (1000, 21886), (1240, 17650), (1412, 15500), (1550, 14120), (1765, 12400), (2000, 10943), (2480, 8825), (2824, 7750), (3100, 7060), (3530, 6200), (3875, 5648)]