140039720

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{283}}^1$

素因数の和:522

約数の個数: 64

約数和(自身を含む): 322056000

約数和(自身を除く): 182016280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 139, 178, 278, 283, 356, 445, 556, 566, 695, 712, 890, 1112, 1132, 1390, 1415, 1780, 2264, 2780, 2830, 3560, 5560, 5660, 11320, 12371, 24742, 25187, 39337, 49484, 50374, 61855, 78674, 98968, 100748, 123710, 125935, 157348, 196685, 201496, 247420, 251870, 314696, 393370, 494840, 503740, 786740, 1007480, 1573480, 3500993, 7001986, 14003972, 17504965, 28007944, 35009930, 70019860, 140039720]

約数ペア:

[(1, 140039720), (2, 70019860), (4, 35009930), (5, 28007944), (8, 17504965), (10, 14003972), (20, 7001986), (40, 3500993), (89, 1573480), (139, 1007480), (178, 786740), (278, 503740), (283, 494840), (356, 393370), (445, 314696), (556, 251870), (566, 247420), (695, 201496), (712, 196685), (890, 157348), (1112, 125935), (1132, 123710), (1390, 100748), (1415, 98968), (1780, 78674), (2264, 61855), (2780, 50374), (2830, 49484), (3560, 39337), (5560, 25187), (5660, 24742), (11320, 12371)]