31120880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{467}}^1$

素因数の和:511

約数の個数: 120

約数和(自身を含む): 89311248

約数和(自身を除く): 58190368

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 196, 238, 245, 272, 280, 340, 392, 467, 476, 490, 560, 595, 680, 784, 833, 934, 952, 980, 1190, 1360, 1666, 1868, 1904, 1960, 2335, 2380, 3269, 3332, 3736, 3920, 4165, 4670, 4760, 6538, 6664, 7472, 7939, 8330, 9340, 9520, 13076, 13328, 15878, 16345, 16660, 18680, 22883, 26152, 31756, 32690, 33320, 37360, 39695, 45766, 52304, 55573, 63512, 65380, 66640, 79390, 91532, 111146, 114415, 127024, 130760, 158780, 183064, 222292, 228830, 261520, 277865, 317560, 366128, 389011, 444584, 457660, 555730, 635120, 778022, 889168, 915320, 1111460, 1556044, 1830640, 1945055, 2222920, 3112088, 3890110, 4445840, 6224176, 7780220, 15560440, 31120880]

約数ペア:

[(1, 31120880), (2, 15560440), (4, 7780220), (5, 6224176), (7, 4445840), (8, 3890110), (10, 3112088), (14, 2222920), (16, 1945055), (17, 1830640), (20, 1556044), (28, 1111460), (34, 915320), (35, 889168), (40, 778022), (49, 635120), (56, 555730), (68, 457660), (70, 444584), (80, 389011), (85, 366128), (98, 317560), (112, 277865), (119, 261520), (136, 228830), (140, 222292), (170, 183064), (196, 158780), (238, 130760), (245, 127024), (272, 114415), (280, 111146), (340, 91532), (392, 79390), (467, 66640), (476, 65380), (490, 63512), (560, 55573), (595, 52304), (680, 45766), (784, 39695), (833, 37360), (934, 33320), (952, 32690), (980, 31756), (1190, 26152), (1360, 22883), (1666, 18680), (1868, 16660), (1904, 16345), (1960, 15878), (2335, 13328), (2380, 13076), (3269, 9520), (3332, 9340), (3736, 8330), (3920, 7939), (4165, 7472), (4670, 6664), (4760, 6538)]