645194704

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:729

約数の個数: 160

約数和(自身を含む): 1681320960

約数和(自身を除く): 1036126256

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 38, 43, 44, 56, 76, 77, 86, 88, 112, 133, 152, 154, 172, 176, 209, 266, 301, 304, 308, 344, 418, 473, 532, 602, 616, 641, 688, 817, 836, 946, 1064, 1204, 1232, 1282, 1463, 1634, 1672, 1892, 2128, 2408, 2564, 2926, 3268, 3311, 3344, 3784, 4487, 4816, 5128, 5719, 5852, 6536, 6622, 7051, 7568, 8974, 8987, 10256, 11438, 11704, 12179, 13072, 13244, 14102, 17948, 17974, 22876, 23408, 24358, 26488, 27563, 28204, 35896, 35948, 45752, 48716, 49357, 52976, 55126, 56408, 62909, 71792, 71896, 85253, 91504, 97432, 98714, 110252, 112816, 125818, 133969, 143792, 170506, 192941, 194864, 197428, 220504, 251636, 267938, 303193, 341012, 385882, 394856, 441008, 503272, 523697, 535876, 606386, 682024, 771764, 789712, 937783, 1006544, 1047394, 1071752, 1212772, 1364048, 1543528, 1875566, 2094788, 2122351, 2143504, 2425544, 3087056, 3665879, 3751132, 4189576, 4244702, 4851088, 5760667, 7331758, 7502264, 8379152, 8489404, 11521334, 14663516, 15004528, 16978808, 23042668, 29327032, 33957616, 40324669, 46085336, 58654064, 80649338, 92170672, 161298676, 322597352, 645194704]

約数ペア:

[(1, 645194704), (2, 322597352), (4, 161298676), (7, 92170672), (8, 80649338), (11, 58654064), (14, 46085336), (16, 40324669), (19, 33957616), (22, 29327032), (28, 23042668), (38, 16978808), (43, 15004528), (44, 14663516), (56, 11521334), (76, 8489404), (77, 8379152), (86, 7502264), (88, 7331758), (112, 5760667), (133, 4851088), (152, 4244702), (154, 4189576), (172, 3751132), (176, 3665879), (209, 3087056), (266, 2425544), (301, 2143504), (304, 2122351), (308, 2094788), (344, 1875566), (418, 1543528), (473, 1364048), (532, 1212772), (602, 1071752), (616, 1047394), (641, 1006544), (688, 937783), (817, 789712), (836, 771764), (946, 682024), (1064, 606386), (1204, 535876), (1232, 523697), (1282, 503272), (1463, 441008), (1634, 394856), (1672, 385882), (1892, 341012), (2128, 303193), (2408, 267938), (2564, 251636), (2926, 220504), (3268, 197428), (3311, 194864), (3344, 192941), (3784, 170506), (4487, 143792), (4816, 133969), (5128, 125818), (5719, 112816), (5852, 110252), (6536, 98714), (6622, 97432), (7051, 91504), (7568, 85253), (8974, 71896), (8987, 71792), (10256, 62909), (11438, 56408), (11704, 55126), (12179, 52976), (13072, 49357), (13244, 48716), (14102, 45752), (17948, 35948), (17974, 35896), (22876, 28204), (23408, 27563), (24358, 26488)]