11645420

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:278

約数の個数: 48

約数和(自身を含む): 25401600

約数和(自身を除く): 13756180

約数列:

[1, 2, 4, 5, 10, 20, 59, 71, 118, 139, 142, 236, 278, 284, 295, 355, 556, 590, 695, 710, 1180, 1390, 1420, 2780, 4189, 8201, 8378, 9869, 16402, 16756, 19738, 20945, 32804, 39476, 41005, 41890, 49345, 82010, 83780, 98690, 164020, 197380, 582271, 1164542, 2329084, 2911355, 5822710, 11645420]

約数ペア:

[(1, 11645420), (2, 5822710), (4, 2911355), (5, 2329084), (10, 1164542), (20, 582271), (59, 197380), (71, 164020), (118, 98690), (139, 83780), (142, 82010), (236, 49345), (278, 41890), (284, 41005), (295, 39476), (355, 32804), (556, 20945), (590, 19738), (695, 16756), (710, 16402), (1180, 9869), (1390, 8378), (1420, 8201), (2780, 4189)]