19797400

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:281

約数の個数: 96

約数和(自身を含む): 53568000

約数和(自身を除く): 33770600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 79, 100, 140, 158, 175, 179, 200, 280, 316, 350, 358, 395, 553, 632, 700, 716, 790, 895, 1106, 1253, 1400, 1432, 1580, 1790, 1975, 2212, 2506, 2765, 3160, 3580, 3950, 4424, 4475, 5012, 5530, 6265, 7160, 7900, 8950, 10024, 11060, 12530, 13825, 14141, 15800, 17900, 22120, 25060, 27650, 28282, 31325, 35800, 50120, 55300, 56564, 62650, 70705, 98987, 110600, 113128, 125300, 141410, 197974, 250600, 282820, 353525, 395948, 494935, 565640, 707050, 791896, 989870, 1414100, 1979740, 2474675, 2828200, 3959480, 4949350, 9898700, 19797400]

約数ペア:

[(1, 19797400), (2, 9898700), (4, 4949350), (5, 3959480), (7, 2828200), (8, 2474675), (10, 1979740), (14, 1414100), (20, 989870), (25, 791896), (28, 707050), (35, 565640), (40, 494935), (50, 395948), (56, 353525), (70, 282820), (79, 250600), (100, 197974), (140, 141410), (158, 125300), (175, 113128), (179, 110600), (200, 98987), (280, 70705), (316, 62650), (350, 56564), (358, 55300), (395, 50120), (553, 35800), (632, 31325), (700, 28282), (716, 27650), (790, 25060), (895, 22120), (1106, 17900), (1253, 15800), (1400, 14141), (1432, 13825), (1580, 12530), (1790, 11060), (1975, 10024), (2212, 8950), (2506, 7900), (2765, 7160), (3160, 6265), (3580, 5530), (3950, 5012), (4424, 4475)]