81556776

素因数分解:

$2^3\times 3^2\times 7^2\times {\mathrm{23117}}^1$

素因数の和:23143

約数の個数: 72

約数和(自身を含む): 256956570

約数和(自身を除く): 175399794

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 49, 56, 63, 72, 84, 98, 126, 147, 168, 196, 252, 294, 392, 441, 504, 588, 882, 1176, 1764, 3528, 23117, 46234, 69351, 92468, 138702, 161819, 184936, 208053, 277404, 323638, 416106, 485457, 554808, 647276, 832212, 970914, 1132733, 1294552, 1456371, 1664424, 1941828, 2265466, 2912742, 3398199, 3883656, 4530932, 5825484, 6796398, 9061864, 10194597, 11650968, 13592796, 20389194, 27185592, 40778388, 81556776]

約数ペア:

[(1, 81556776), (2, 40778388), (3, 27185592), (4, 20389194), (6, 13592796), (7, 11650968), (8, 10194597), (9, 9061864), (12, 6796398), (14, 5825484), (18, 4530932), (21, 3883656), (24, 3398199), (28, 2912742), (36, 2265466), (42, 1941828), (49, 1664424), (56, 1456371), (63, 1294552), (72, 1132733), (84, 970914), (98, 832212), (126, 647276), (147, 554808), (168, 485457), (196, 416106), (252, 323638), (294, 277404), (392, 208053), (441, 184936), (504, 161819), (588, 138702), (882, 92468), (1176, 69351), (1764, 46234), (3528, 23117)]