8855120

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1559}}^1$

素因数の和:1643

約数の個数: 40

約数和(自身を含む): 20891520

約数和(自身を除く): 12036400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 1559, 2840, 3118, 5680, 6236, 7795, 12472, 15590, 24944, 31180, 62360, 110689, 124720, 221378, 442756, 553445, 885512, 1106890, 1771024, 2213780, 4427560, 8855120]

約数ペア:

[(1, 8855120), (2, 4427560), (4, 2213780), (5, 1771024), (8, 1106890), (10, 885512), (16, 553445), (20, 442756), (40, 221378), (71, 124720), (80, 110689), (142, 62360), (284, 31180), (355, 24944), (568, 15590), (710, 12472), (1136, 7795), (1420, 6236), (1559, 5680), (2840, 3118)]