28091560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2447}}^1$

素因数の和:2506

約数の個数: 64

約数和(自身を含む): 74027520

約数和(自身を除く): 45935960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 82, 140, 164, 205, 280, 287, 328, 410, 574, 820, 1148, 1435, 1640, 2296, 2447, 2870, 4894, 5740, 9788, 11480, 12235, 17129, 19576, 24470, 34258, 48940, 68516, 85645, 97880, 100327, 137032, 171290, 200654, 342580, 401308, 501635, 685160, 702289, 802616, 1003270, 1404578, 2006540, 2809156, 3511445, 4013080, 5618312, 7022890, 14045780, 28091560]

約数ペア:

[(1, 28091560), (2, 14045780), (4, 7022890), (5, 5618312), (7, 4013080), (8, 3511445), (10, 2809156), (14, 2006540), (20, 1404578), (28, 1003270), (35, 802616), (40, 702289), (41, 685160), (56, 501635), (70, 401308), (82, 342580), (140, 200654), (164, 171290), (205, 137032), (280, 100327), (287, 97880), (328, 85645), (410, 68516), (574, 48940), (820, 34258), (1148, 24470), (1435, 19576), (1640, 17129), (2296, 12235), (2447, 11480), (2870, 9788), (4894, 5740)]