66421520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{75479}}^1$

素因数の和:75503

約数の個数: 40

約数和(自身を含む): 168471360

約数和(自身を除く): 102049840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 75479, 150958, 301916, 377395, 603832, 754790, 830269, 1207664, 1509580, 1660538, 3019160, 3321076, 4151345, 6038320, 6642152, 8302690, 13284304, 16605380, 33210760, 66421520]

約数ペア:

[(1, 66421520), (2, 33210760), (4, 16605380), (5, 13284304), (8, 8302690), (10, 6642152), (11, 6038320), (16, 4151345), (20, 3321076), (22, 3019160), (40, 1660538), (44, 1509580), (55, 1207664), (80, 830269), (88, 754790), (110, 603832), (176, 377395), (220, 301916), (440, 150958), (880, 75479)]