25294540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{283}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 55107360

約数和(自身を除く): 29812820

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 109, 164, 205, 218, 283, 410, 436, 545, 566, 820, 1090, 1132, 1415, 2180, 2830, 4469, 5660, 8938, 11603, 17876, 22345, 23206, 30847, 44690, 46412, 58015, 61694, 89380, 116030, 123388, 154235, 232060, 308470, 616940, 1264727, 2529454, 5058908, 6323635, 12647270, 25294540]

約数ペア:

[(1, 25294540), (2, 12647270), (4, 6323635), (5, 5058908), (10, 2529454), (20, 1264727), (41, 616940), (82, 308470), (109, 232060), (164, 154235), (205, 123388), (218, 116030), (283, 89380), (410, 61694), (436, 58015), (545, 46412), (566, 44690), (820, 30847), (1090, 23206), (1132, 22345), (1415, 17876), (2180, 11603), (2830, 8938), (4469, 5660)]