81043704

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{401}}^2$

素因数の和:821

約数の個数: 72

約数和(自身を含む): 251476680

約数和(自身を除く): 170432976

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 401, 504, 802, 1203, 1604, 2406, 2807, 3208, 3609, 4812, 5614, 7218, 8421, 9624, 11228, 14436, 16842, 22456, 25263, 28872, 33684, 50526, 67368, 101052, 160801, 202104, 321602, 482403, 643204, 964806, 1125607, 1286408, 1447209, 1929612, 2251214, 2894418, 3376821, 3859224, 4502428, 5788836, 6753642, 9004856, 10130463, 11577672, 13507284, 20260926, 27014568, 40521852, 81043704]

約数ペア:

[(1, 81043704), (2, 40521852), (3, 27014568), (4, 20260926), (6, 13507284), (7, 11577672), (8, 10130463), (9, 9004856), (12, 6753642), (14, 5788836), (18, 4502428), (21, 3859224), (24, 3376821), (28, 2894418), (36, 2251214), (42, 1929612), (56, 1447209), (63, 1286408), (72, 1125607), (84, 964806), (126, 643204), (168, 482403), (252, 321602), (401, 202104), (504, 160801), (802, 101052), (1203, 67368), (1604, 50526), (2406, 33684), (2807, 28872), (3208, 25263), (3609, 22456), (4812, 16842), (5614, 14436), (7218, 11228), (8421, 9624)]