256646502

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{678959}}^1$

素因数の和:678977

約数の個数: 32

約数和(自身を含む): 651801600

約数和(自身を除く): 395155098

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378, 678959, 1357918, 2036877, 4073754, 4752713, 6110631, 9505426, 12221262, 14258139, 18331893, 28516278, 36663786, 42774417, 85548834, 128323251, 256646502]

約数ペア:

[(1, 256646502), (2, 128323251), (3, 85548834), (6, 42774417), (7, 36663786), (9, 28516278), (14, 18331893), (18, 14258139), (21, 12221262), (27, 9505426), (42, 6110631), (54, 4752713), (63, 4073754), (126, 2036877), (189, 1357918), (378, 678959)]