64348660

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1\times {\mathrm{293}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 138297600

約数和(自身を除く): 73948940

約数列:

[1, 2, 4, 5, 10, 20, 79, 139, 158, 278, 293, 316, 395, 556, 586, 695, 790, 1172, 1390, 1465, 1580, 2780, 2930, 5860, 10981, 21962, 23147, 40727, 43924, 46294, 54905, 81454, 92588, 109810, 115735, 162908, 203635, 219620, 231470, 407270, 462940, 814540, 3217433, 6434866, 12869732, 16087165, 32174330, 64348660]

約数ペア:

[(1, 64348660), (2, 32174330), (4, 16087165), (5, 12869732), (10, 6434866), (20, 3217433), (79, 814540), (139, 462940), (158, 407270), (278, 231470), (293, 219620), (316, 203635), (395, 162908), (556, 115735), (586, 109810), (695, 92588), (790, 81454), (1172, 54905), (1390, 46294), (1465, 43924), (1580, 40727), (2780, 23147), (2930, 21962), (5860, 10981)]