19454960

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{709}}^1$

素因数の和:743

約数の個数: 80

約数和(自身を含む): 52824000

約数和(自身を除く): 33369040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 490, 560, 686, 709, 784, 980, 1372, 1418, 1715, 1960, 2744, 2836, 3430, 3545, 3920, 4963, 5488, 5672, 6860, 7090, 9926, 11344, 13720, 14180, 19852, 24815, 27440, 28360, 34741, 39704, 49630, 56720, 69482, 79408, 99260, 138964, 173705, 198520, 243187, 277928, 347410, 397040, 486374, 555856, 694820, 972748, 1215935, 1389640, 1945496, 2431870, 2779280, 3890992, 4863740, 9727480, 19454960]

約数ペア:

[(1, 19454960), (2, 9727480), (4, 4863740), (5, 3890992), (7, 2779280), (8, 2431870), (10, 1945496), (14, 1389640), (16, 1215935), (20, 972748), (28, 694820), (35, 555856), (40, 486374), (49, 397040), (56, 347410), (70, 277928), (80, 243187), (98, 198520), (112, 173705), (140, 138964), (196, 99260), (245, 79408), (280, 69482), (343, 56720), (392, 49630), (490, 39704), (560, 34741), (686, 28360), (709, 27440), (784, 24815), (980, 19852), (1372, 14180), (1418, 13720), (1715, 11344), (1960, 9926), (2744, 7090), (2836, 6860), (3430, 5672), (3545, 5488), (3920, 4963)]