38909920

素因数分解:

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

素因数の和:745

約数の個数: 96

約数和(自身を含む): 107352000

約数和(自身を除く): 68442080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 392, 490, 560, 686, 709, 784, 980, 1120, 1372, 1418, 1568, 1715, 1960, 2744, 2836, 3430, 3545, 3920, 4963, 5488, 5672, 6860, 7090, 7840, 9926, 10976, 11344, 13720, 14180, 19852, 22688, 24815, 27440, 28360, 34741, 39704, 49630, 54880, 56720, 69482, 79408, 99260, 113440, 138964, 158816, 173705, 198520, 243187, 277928, 347410, 397040, 486374, 555856, 694820, 794080, 972748, 1111712, 1215935, 1389640, 1945496, 2431870, 2779280, 3890992, 4863740, 5558560, 7781984, 9727480, 19454960, 38909920]

約数ペア:

[(1, 38909920), (2, 19454960), (4, 9727480), (5, 7781984), (7, 5558560), (8, 4863740), (10, 3890992), (14, 2779280), (16, 2431870), (20, 1945496), (28, 1389640), (32, 1215935), (35, 1111712), (40, 972748), (49, 794080), (56, 694820), (70, 555856), (80, 486374), (98, 397040), (112, 347410), (140, 277928), (160, 243187), (196, 198520), (224, 173705), (245, 158816), (280, 138964), (343, 113440), (392, 99260), (490, 79408), (560, 69482), (686, 56720), (709, 54880), (784, 49630), (980, 39704), (1120, 34741), (1372, 28360), (1418, 27440), (1568, 24815), (1715, 22688), (1960, 19852), (2744, 14180), (2836, 13720), (3430, 11344), (3545, 10976), (3920, 9926), (4963, 7840), (5488, 7090), (5672, 6860)]