643617536

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{81101}}^1$

素因数の和:81148

約数の個数: 36

約数和(自身を含む): 1326179904

約数和(自身を除く): 682562368

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 3968, 7936, 81101, 162202, 324404, 648808, 1297616, 2514131, 2595232, 5028262, 5190464, 10056524, 10380928, 20113048, 20761856, 40226096, 80452192, 160904384, 321808768, 643617536]

約数ペア:

[(1, 643617536), (2, 321808768), (4, 160904384), (8, 80452192), (16, 40226096), (31, 20761856), (32, 20113048), (62, 10380928), (64, 10056524), (124, 5190464), (128, 5028262), (248, 2595232), (256, 2514131), (496, 1297616), (992, 648808), (1984, 324404), (3968, 162202), (7936, 81101)]