201368920

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{10253}}^1$

素因数の和:10755

約数の個数: 32

約数和(自身を含む): 454047120

約数和(自身を除く): 252678200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 10253, 19640, 20506, 41012, 51265, 82024, 102530, 205060, 410120, 5034223, 10068446, 20136892, 25171115, 40273784, 50342230, 100684460, 201368920]

約数ペア:

[(1, 201368920), (2, 100684460), (4, 50342230), (5, 40273784), (8, 25171115), (10, 20136892), (20, 10068446), (40, 5034223), (491, 410120), (982, 205060), (1964, 102530), (2455, 82024), (3928, 51265), (4910, 41012), (9820, 20506), (10253, 19640)]