128889019

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{401}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 162781056

約数和(自身を除く): 33892037

約数列:

[1, 7, 17, 37, 73, 119, 259, 401, 511, 629, 1241, 2701, 2807, 4403, 6817, 8687, 14837, 18907, 29273, 45917, 47719, 103859, 204911, 252229, 321419, 497641, 1083101, 1765603, 3483487, 7581707, 18412717, 128889019]

約数ペア:

[(1, 128889019), (7, 18412717), (17, 7581707), (37, 3483487), (73, 1765603), (119, 1083101), (259, 497641), (401, 321419), (511, 252229), (629, 204911), (1241, 103859), (2701, 47719), (2807, 45917), (4403, 29273), (6817, 18907), (8687, 14837)]