640054888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1\times {\mathrm{449}}^1$

素因数の和:730

約数の個数: 64

約数和(自身を含む): 1333584000

約数和(自身を除く): 693529112

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 97, 167, 194, 334, 388, 449, 668, 776, 898, 1067, 1336, 1796, 1837, 2134, 3592, 3674, 4268, 4939, 7348, 8536, 9878, 14696, 16199, 19756, 32398, 39512, 43553, 64796, 74983, 87106, 129592, 149966, 174212, 178189, 299932, 348424, 356378, 479083, 599864, 712756, 824813, 958166, 1425512, 1649626, 1916332, 3299252, 3832664, 6598504, 7273351, 14546702, 29093404, 58186808, 80006861, 160013722, 320027444, 640054888]

約数ペア:

[(1, 640054888), (2, 320027444), (4, 160013722), (8, 80006861), (11, 58186808), (22, 29093404), (44, 14546702), (88, 7273351), (97, 6598504), (167, 3832664), (194, 3299252), (334, 1916332), (388, 1649626), (449, 1425512), (668, 958166), (776, 824813), (898, 712756), (1067, 599864), (1336, 479083), (1796, 356378), (1837, 348424), (2134, 299932), (3592, 178189), (3674, 174212), (4268, 149966), (4939, 129592), (7348, 87106), (8536, 74983), (9878, 64796), (14696, 43553), (16199, 39512), (19756, 32398)]