128801855

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:408

約数の個数: 64

約数和(自身を含む): 205148160

約数和(自身を除く): 76346305

約数列:

[1, 5, 7, 13, 19, 35, 47, 65, 91, 95, 133, 235, 247, 317, 329, 455, 611, 665, 893, 1235, 1585, 1645, 1729, 2219, 3055, 4121, 4277, 4465, 6023, 6251, 8645, 11095, 11609, 14899, 20605, 21385, 28847, 30115, 31255, 42161, 58045, 74495, 78299, 81263, 104293, 144235, 193687, 210805, 283081, 391495, 406315, 521465, 548093, 968435, 1355809, 1415405, 1981567, 2740465, 3680053, 6779045, 9907835, 18400265, 25760371, 128801855]

約数ペア:

[(1, 128801855), (5, 25760371), (7, 18400265), (13, 9907835), (19, 6779045), (35, 3680053), (47, 2740465), (65, 1981567), (91, 1415405), (95, 1355809), (133, 968435), (235, 548093), (247, 521465), (317, 406315), (329, 391495), (455, 283081), (611, 210805), (665, 193687), (893, 144235), (1235, 104293), (1585, 81263), (1645, 78299), (1729, 74495), (2219, 58045), (3055, 42161), (4121, 31255), (4277, 30115), (4465, 28847), (6023, 21385), (6251, 20605), (8645, 14899), (11095, 11609)]