80727985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1699}}^1$

素因数の和:1777

約数の個数: 32

約数和(自身を含む): 113097600

約数和(自身を除く): 32369615

約数列:

[1, 5, 13, 17, 43, 65, 85, 215, 221, 559, 731, 1105, 1699, 2795, 3655, 8495, 9503, 22087, 28883, 47515, 73057, 110435, 144415, 365285, 375479, 949741, 1241969, 1877395, 4748705, 6209845, 16145597, 80727985]

約数ペア:

[(1, 80727985), (5, 16145597), (13, 6209845), (17, 4748705), (43, 1877395), (65, 1241969), (85, 949741), (215, 375479), (221, 365285), (559, 144415), (731, 110435), (1105, 73057), (1699, 47515), (2795, 28883), (3655, 22087), (8495, 9503)]