17319820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{641}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 41848128

約数和(自身を除く): 24528308

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 193, 386, 641, 772, 965, 1282, 1351, 1930, 2564, 2702, 3205, 3860, 4487, 5404, 6410, 6755, 8974, 12820, 13510, 17948, 22435, 27020, 44870, 89740, 123713, 247426, 494852, 618565, 865991, 1237130, 1731982, 2474260, 3463964, 4329955, 8659910, 17319820]

約数ペア:

[(1, 17319820), (2, 8659910), (4, 4329955), (5, 3463964), (7, 2474260), (10, 1731982), (14, 1237130), (20, 865991), (28, 618565), (35, 494852), (70, 247426), (140, 123713), (193, 89740), (386, 44870), (641, 27020), (772, 22435), (965, 17948), (1282, 13510), (1351, 12820), (1930, 8974), (2564, 6755), (2702, 6410), (3205, 5404), (3860, 4487)]