164560040

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{61403}}^1$

素因数の和:61481

約数の個数: 32

約数和(自身を含む): 375792480

約数和(自身を除く): 211232440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 61403, 122806, 245612, 307015, 491224, 614030, 1228060, 2456120, 4114001, 8228002, 16456004, 20570005, 32912008, 41140010, 82280020, 164560040]

約数ペア:

[(1, 164560040), (2, 82280020), (4, 41140010), (5, 32912008), (8, 20570005), (10, 16456004), (20, 8228002), (40, 4114001), (67, 2456120), (134, 1228060), (268, 614030), (335, 491224), (536, 307015), (670, 245612), (1340, 122806), (2680, 61403)]