13405520

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{9857}}^1$

素因数の和:9887

約数の個数: 40

約数和(自身を含む): 33004584

約数和(自身を除く): 19599064

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 9857, 19714, 39428, 49285, 78856, 98570, 157712, 167569, 197140, 335138, 394280, 670276, 788560, 837845, 1340552, 1675690, 2681104, 3351380, 6702760, 13405520]

約数ペア:

[(1, 13405520), (2, 6702760), (4, 3351380), (5, 2681104), (8, 1675690), (10, 1340552), (16, 837845), (17, 788560), (20, 670276), (34, 394280), (40, 335138), (68, 197140), (80, 167569), (85, 157712), (136, 98570), (170, 78856), (272, 49285), (340, 39428), (680, 19714), (1360, 9857)]