31990816

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6991}}^1$

素因数の和:7025

約数の個数: 48

約数和(自身を含む): 74003328

約数和(自身を除く): 42012512

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 32, 44, 52, 88, 104, 143, 176, 208, 286, 352, 416, 572, 1144, 2288, 4576, 6991, 13982, 27964, 55928, 76901, 90883, 111856, 153802, 181766, 223712, 307604, 363532, 615208, 727064, 999713, 1230416, 1454128, 1999426, 2460832, 2908256, 3998852, 7997704, 15995408, 31990816]

約数ペア:

[(1, 31990816), (2, 15995408), (4, 7997704), (8, 3998852), (11, 2908256), (13, 2460832), (16, 1999426), (22, 1454128), (26, 1230416), (32, 999713), (44, 727064), (52, 615208), (88, 363532), (104, 307604), (143, 223712), (176, 181766), (208, 153802), (286, 111856), (352, 90883), (416, 76901), (572, 55928), (1144, 27964), (2288, 13982), (4576, 6991)]