82801180

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{7681}}^1$

素因数の和:7715

約数の個数: 72

約数和(自身を含む): 220688496

約数和(自身を除く): 137887316

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 7681, 10780, 15362, 30724, 38405, 53767, 76810, 84491, 107534, 153620, 168982, 215068, 268835, 337964, 376369, 422455, 537670, 591437, 752738, 844910, 1075340, 1182874, 1505476, 1689820, 1881845, 2365748, 2957185, 3763690, 4140059, 5914370, 7527380, 8280118, 11828740, 16560236, 20700295, 41400590, 82801180]

約数ペア:

[(1, 82801180), (2, 41400590), (4, 20700295), (5, 16560236), (7, 11828740), (10, 8280118), (11, 7527380), (14, 5914370), (20, 4140059), (22, 3763690), (28, 2957185), (35, 2365748), (44, 1881845), (49, 1689820), (55, 1505476), (70, 1182874), (77, 1075340), (98, 844910), (110, 752738), (140, 591437), (154, 537670), (196, 422455), (220, 376369), (245, 337964), (308, 268835), (385, 215068), (490, 168982), (539, 153620), (770, 107534), (980, 84491), (1078, 76810), (1540, 53767), (2156, 38405), (2695, 30724), (5390, 15362), (7681, 10780)]