21400440

素因数分解:

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

素因数の和:1436

約数の個数: 64

約数和(自身を含む): 64713600

約数和(自身を除く): 43313160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1283, 1390, 1668, 2085, 2566, 2780, 3336, 3849, 4170, 5132, 5560, 6415, 7698, 8340, 10264, 12830, 15396, 16680, 19245, 25660, 30792, 38490, 51320, 76980, 153960, 178337, 356674, 535011, 713348, 891685, 1070022, 1426696, 1783370, 2140044, 2675055, 3566740, 4280088, 5350110, 7133480, 10700220, 21400440]

約数ペア:

[(1, 21400440), (2, 10700220), (3, 7133480), (4, 5350110), (5, 4280088), (6, 3566740), (8, 2675055), (10, 2140044), (12, 1783370), (15, 1426696), (20, 1070022), (24, 891685), (30, 713348), (40, 535011), (60, 356674), (120, 178337), (139, 153960), (278, 76980), (417, 51320), (556, 38490), (695, 30792), (834, 25660), (1112, 19245), (1283, 16680), (1390, 15396), (1668, 12830), (2085, 10264), (2566, 8340), (2780, 7698), (3336, 6415), (3849, 5560), (4170, 5132)]