256498746

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{321427}}^1$

素因数の和:321458

約数の個数: 32

約数和(自身を含む): 617141760

約数和(自身を除く): 360643014

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798, 321427, 642854, 964281, 1928562, 2249989, 4499978, 6107113, 6749967, 12214226, 13499934, 18321339, 36642678, 42749791, 85499582, 128249373, 256498746]

約数ペア:

[(1, 256498746), (2, 128249373), (3, 85499582), (6, 42749791), (7, 36642678), (14, 18321339), (19, 13499934), (21, 12214226), (38, 6749967), (42, 6107113), (57, 4499978), (114, 2249989), (133, 1928562), (266, 964281), (399, 642854), (798, 321427)]