256998672

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{254959}}^1$

素因数の和:254980

約数の個数: 60

約数和(自身を含む): 821991040

約数和(自身を除く): 564992368

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 254959, 509918, 764877, 1019836, 1529754, 1784713, 2039672, 2294631, 3059508, 3569426, 4079344, 4589262, 5354139, 6119016, 7138852, 9178524, 10708278, 12238032, 14277704, 16062417, 18357048, 21416556, 28555408, 32124834, 36714096, 42833112, 64249668, 85666224, 128499336, 256998672]

約数ペア:

[(1, 256998672), (2, 128499336), (3, 85666224), (4, 64249668), (6, 42833112), (7, 36714096), (8, 32124834), (9, 28555408), (12, 21416556), (14, 18357048), (16, 16062417), (18, 14277704), (21, 12238032), (24, 10708278), (28, 9178524), (36, 7138852), (42, 6119016), (48, 5354139), (56, 4589262), (63, 4079344), (72, 3569426), (84, 3059508), (112, 2294631), (126, 2039672), (144, 1784713), (168, 1529754), (252, 1019836), (336, 764877), (504, 509918), (1008, 254959)]