779939440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{523}}^1\times {\mathrm{2663}}^1$

素因数の和:3206

約数の個数: 80

約数和(自身を含む): 2077152768

約数和(自身を除く): 1297213328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 523, 560, 1046, 2092, 2615, 2663, 3661, 4184, 5230, 5326, 7322, 8368, 10460, 10652, 13315, 14644, 18305, 18641, 20920, 21304, 26630, 29288, 36610, 37282, 41840, 42608, 53260, 58576, 73220, 74564, 93205, 106520, 146440, 149128, 186410, 213040, 292880, 298256, 372820, 745640, 1392749, 1491280, 2785498, 5570996, 6963745, 9749243, 11141992, 13927490, 19498486, 22283984, 27854980, 38996972, 48746215, 55709960, 77993944, 97492430, 111419920, 155987888, 194984860, 389969720, 779939440]

約数ペア:

[(1, 779939440), (2, 389969720), (4, 194984860), (5, 155987888), (7, 111419920), (8, 97492430), (10, 77993944), (14, 55709960), (16, 48746215), (20, 38996972), (28, 27854980), (35, 22283984), (40, 19498486), (56, 13927490), (70, 11141992), (80, 9749243), (112, 6963745), (140, 5570996), (280, 2785498), (523, 1491280), (560, 1392749), (1046, 745640), (2092, 372820), (2615, 298256), (2663, 292880), (3661, 213040), (4184, 186410), (5230, 149128), (5326, 146440), (7322, 106520), (8368, 93205), (10460, 74564), (10652, 73220), (13315, 58576), (14644, 53260), (18305, 42608), (18641, 41840), (20920, 37282), (21304, 36610), (26630, 29288)]