71311480

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4583}}^1$

素因数の和:4983

約数の個数: 32

約数和(自身を含む): 160898400

約数和(自身を除く): 89586920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 4583, 7780, 9166, 15560, 18332, 22915, 36664, 45830, 91660, 183320, 1782787, 3565574, 7131148, 8913935, 14262296, 17827870, 35655740, 71311480]

約数ペア:

[(1, 71311480), (2, 35655740), (4, 17827870), (5, 14262296), (8, 8913935), (10, 7131148), (20, 3565574), (40, 1782787), (389, 183320), (778, 91660), (1556, 45830), (1945, 36664), (3112, 22915), (3890, 18332), (4583, 15560), (7780, 9166)]