78468280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{1283}}^1$

素因数の和:1444

約数の個数: 64

約数和(自身を含む): 194140800

約数和(自身を除く): 115672520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 139, 220, 278, 440, 556, 695, 1112, 1283, 1390, 1529, 2566, 2780, 3058, 5132, 5560, 6116, 6415, 7645, 10264, 12232, 12830, 14113, 15290, 25660, 28226, 30580, 51320, 56452, 61160, 70565, 112904, 141130, 178337, 282260, 356674, 564520, 713348, 891685, 1426696, 1783370, 1961707, 3566740, 3923414, 7133480, 7846828, 9808535, 15693656, 19617070, 39234140, 78468280]

約数ペア:

[(1, 78468280), (2, 39234140), (4, 19617070), (5, 15693656), (8, 9808535), (10, 7846828), (11, 7133480), (20, 3923414), (22, 3566740), (40, 1961707), (44, 1783370), (55, 1426696), (88, 891685), (110, 713348), (139, 564520), (220, 356674), (278, 282260), (440, 178337), (556, 141130), (695, 112904), (1112, 70565), (1283, 61160), (1390, 56452), (1529, 51320), (2566, 30580), (2780, 28226), (3058, 25660), (5132, 15290), (5560, 14113), (6116, 12830), (6415, 12232), (7645, 10264)]