8405920

素因数分解:

$2^5\times 5^1\times {\mathrm{107}}^1\times {\mathrm{491}}^1$

素因数の和:613

約数の個数: 48

約数和(自身を含む): 20085408

約数和(自身を除く): 11679488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 107, 160, 214, 428, 491, 535, 856, 982, 1070, 1712, 1964, 2140, 2455, 3424, 3928, 4280, 4910, 7856, 8560, 9820, 15712, 17120, 19640, 39280, 52537, 78560, 105074, 210148, 262685, 420296, 525370, 840592, 1050740, 1681184, 2101480, 4202960, 8405920]

約数ペア:

[(1, 8405920), (2, 4202960), (4, 2101480), (5, 1681184), (8, 1050740), (10, 840592), (16, 525370), (20, 420296), (32, 262685), (40, 210148), (80, 105074), (107, 78560), (160, 52537), (214, 39280), (428, 19640), (491, 17120), (535, 15712), (856, 9820), (982, 8560), (1070, 7856), (1712, 4910), (1964, 4280), (2140, 3928), (2455, 3424)]