18885625

素因数分解:

$5^4\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:139

約数の個数: 40

約数和(自身を含む): 26766432

約数和(自身を除く): 7880807

約数列:

[1, 5, 11, 25, 41, 55, 67, 125, 205, 275, 335, 451, 625, 737, 1025, 1375, 1675, 2255, 2747, 3685, 5125, 6875, 8375, 11275, 13735, 18425, 25625, 30217, 41875, 56375, 68675, 92125, 151085, 281875, 343375, 460625, 755425, 1716875, 3777125, 18885625]

約数ペア:

[(1, 18885625), (5, 3777125), (11, 1716875), (25, 755425), (41, 460625), (55, 343375), (67, 281875), (125, 151085), (205, 92125), (275, 68675), (335, 56375), (451, 41875), (625, 30217), (737, 25625), (1025, 18425), (1375, 13735), (1675, 11275), (2255, 8375), (2747, 6875), (3685, 5125)]