17980120

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{6709}}^1$

素因数の和:6787

約数の個数: 32

約数和(自身を含む): 41065200

約数和(自身を除く): 23085080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 335, 536, 670, 1340, 2680, 6709, 13418, 26836, 33545, 53672, 67090, 134180, 268360, 449503, 899006, 1798012, 2247515, 3596024, 4495030, 8990060, 17980120]

約数ペア:

[(1, 17980120), (2, 8990060), (4, 4495030), (5, 3596024), (8, 2247515), (10, 1798012), (20, 899006), (40, 449503), (67, 268360), (134, 134180), (268, 67090), (335, 53672), (536, 33545), (670, 26836), (1340, 13418), (2680, 6709)]