81890710

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{4159}}^1$

素因数の和:4356

約数の個数: 32

約数和(自身を含む): 161740800

約数和(自身を除く): 79850090

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1790, 1969, 3938, 4159, 8318, 9845, 19690, 20795, 41590, 45749, 91498, 228745, 457490, 744461, 1488922, 3722305, 7444610, 8189071, 16378142, 40945355, 81890710]

約数ペア:

[(1, 81890710), (2, 40945355), (5, 16378142), (10, 8189071), (11, 7444610), (22, 3722305), (55, 1488922), (110, 744461), (179, 457490), (358, 228745), (895, 91498), (1790, 45749), (1969, 41590), (3938, 20795), (4159, 19690), (8318, 9845)]