25647825

素因数分解:

$3^1\times 5^2\times 7^3\times {\mathrm{997}}^1$

素因数の和:1031

約数の個数: 48

約数和(自身を含む): 49500800

約数和(自身を除く): 23852975

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 49, 75, 105, 147, 175, 245, 343, 525, 735, 997, 1029, 1225, 1715, 2991, 3675, 4985, 5145, 6979, 8575, 14955, 20937, 24925, 25725, 34895, 48853, 74775, 104685, 146559, 174475, 244265, 341971, 523425, 732795, 1025913, 1221325, 1709855, 3663975, 5129565, 8549275, 25647825]

約数ペア:

[(1, 25647825), (3, 8549275), (5, 5129565), (7, 3663975), (15, 1709855), (21, 1221325), (25, 1025913), (35, 732795), (49, 523425), (75, 341971), (105, 244265), (147, 174475), (175, 146559), (245, 104685), (343, 74775), (525, 48853), (735, 34895), (997, 25725), (1029, 24925), (1225, 20937), (1715, 14955), (2991, 8575), (3675, 6979), (4985, 5145)]