51478520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{11807}}^1$

素因数の和:11927

約数の個数: 32

約数和(自身を含む): 116899200

約数和(自身を除く): 65420680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 11807, 23614, 47228, 59035, 94456, 118070, 236140, 472280, 1286963, 2573926, 5147852, 6434815, 10295704, 12869630, 25739260, 51478520]

約数ペア:

[(1, 51478520), (2, 25739260), (4, 12869630), (5, 10295704), (8, 6434815), (10, 5147852), (20, 2573926), (40, 1286963), (109, 472280), (218, 236140), (436, 118070), (545, 94456), (872, 59035), (1090, 47228), (2180, 23614), (4360, 11807)]