127520020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{335579}}^1$

素因数の和:335607

約数の個数: 24

約数和(自身を含む): 281887200

約数和(自身を除く): 154367180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 335579, 671158, 1342316, 1677895, 3355790, 6376001, 6711580, 12752002, 25504004, 31880005, 63760010, 127520020]

約数ペア:

[(1, 127520020), (2, 63760010), (4, 31880005), (5, 25504004), (10, 12752002), (19, 6711580), (20, 6376001), (38, 3355790), (76, 1677895), (95, 1342316), (190, 671158), (380, 335579)]