640755584

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:308

約数の個数: 128

約数和(自身を含む): 1512276480

約数和(自身を除く): 871520896

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 103, 106, 112, 128, 131, 206, 212, 224, 262, 371, 412, 424, 448, 524, 721, 742, 824, 848, 896, 917, 1048, 1442, 1484, 1648, 1696, 1834, 2096, 2884, 2968, 3296, 3392, 3668, 4192, 5459, 5768, 5936, 6592, 6784, 6943, 7336, 8384, 10918, 11536, 11872, 13184, 13493, 13886, 14672, 16768, 21836, 23072, 23744, 26986, 27772, 29344, 38213, 43672, 46144, 47488, 48601, 53972, 55544, 58688, 76426, 87344, 92288, 94451, 97202, 107944, 111088, 117376, 152852, 174688, 188902, 194404, 215888, 222176, 305704, 349376, 377804, 388808, 431776, 444352, 611408, 698752, 715129, 755608, 777616, 863552, 888704, 1222816, 1430258, 1511216, 1555232, 1727104, 2445632, 2860516, 3022432, 3110464, 4891264, 5005903, 5721032, 6044864, 6220928, 10011806, 11442064, 12089728, 20023612, 22884128, 40047224, 45768256, 80094448, 91536512, 160188896, 320377792, 640755584]

約数ペア:

[(1, 640755584), (2, 320377792), (4, 160188896), (7, 91536512), (8, 80094448), (14, 45768256), (16, 40047224), (28, 22884128), (32, 20023612), (53, 12089728), (56, 11442064), (64, 10011806), (103, 6220928), (106, 6044864), (112, 5721032), (128, 5005903), (131, 4891264), (206, 3110464), (212, 3022432), (224, 2860516), (262, 2445632), (371, 1727104), (412, 1555232), (424, 1511216), (448, 1430258), (524, 1222816), (721, 888704), (742, 863552), (824, 777616), (848, 755608), (896, 715129), (917, 698752), (1048, 611408), (1442, 444352), (1484, 431776), (1648, 388808), (1696, 377804), (1834, 349376), (2096, 305704), (2884, 222176), (2968, 215888), (3296, 194404), (3392, 188902), (3668, 174688), (4192, 152852), (5459, 117376), (5768, 111088), (5936, 107944), (6592, 97202), (6784, 94451), (6943, 92288), (7336, 87344), (8384, 76426), (10918, 58688), (11536, 55544), (11872, 53972), (13184, 48601), (13493, 47488), (13886, 46144), (14672, 43672), (16768, 38213), (21836, 29344), (23072, 27772), (23744, 26986)]