25213880

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5783}}^1$

素因数の和:5903

約数の個数: 32

約数和(自身を含む): 57261600

約数和(自身を除く): 32047720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 5783, 11566, 23132, 28915, 46264, 57830, 115660, 231320, 630347, 1260694, 2521388, 3151735, 5042776, 6303470, 12606940, 25213880]

約数ペア:

[(1, 25213880), (2, 12606940), (4, 6303470), (5, 5042776), (8, 3151735), (10, 2521388), (20, 1260694), (40, 630347), (109, 231320), (218, 115660), (436, 57830), (545, 46264), (872, 28915), (1090, 23132), (2180, 11566), (4360, 5783)]