161728168

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{263}}^1$

素因数の和:494

約数の個数: 64

約数和(自身を含む): 354816000

約数和(自身を除く): 193087832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 139, 158, 263, 278, 316, 526, 553, 556, 632, 973, 1052, 1106, 1112, 1841, 1946, 2104, 2212, 3682, 3892, 4424, 7364, 7784, 10981, 14728, 20777, 21962, 36557, 41554, 43924, 73114, 76867, 83108, 87848, 145439, 146228, 153734, 166216, 255899, 290878, 292456, 307468, 511798, 581756, 614936, 1023596, 1163512, 2047192, 2888003, 5776006, 11552012, 20216021, 23104024, 40432042, 80864084, 161728168]

約数ペア:

[(1, 161728168), (2, 80864084), (4, 40432042), (7, 23104024), (8, 20216021), (14, 11552012), (28, 5776006), (56, 2888003), (79, 2047192), (139, 1163512), (158, 1023596), (263, 614936), (278, 581756), (316, 511798), (526, 307468), (553, 292456), (556, 290878), (632, 255899), (973, 166216), (1052, 153734), (1106, 146228), (1112, 145439), (1841, 87848), (1946, 83108), (2104, 76867), (2212, 73114), (3682, 43924), (3892, 41554), (4424, 36557), (7364, 21962), (7784, 20777), (10981, 14728)]