81556816

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^3$

素因数の和:125

約数の個数: 80

約数和(自身を含む): 187934400

約数和(自身を除く): 106377584

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 29, 38, 44, 58, 76, 88, 116, 152, 176, 209, 232, 304, 319, 418, 464, 551, 638, 836, 841, 1102, 1276, 1672, 1682, 2204, 2552, 3344, 3364, 4408, 5104, 6061, 6728, 8816, 9251, 12122, 13456, 15979, 18502, 24244, 24389, 31958, 37004, 48488, 48778, 63916, 74008, 96976, 97556, 127832, 148016, 175769, 195112, 255664, 268279, 351538, 390224, 463391, 536558, 703076, 926782, 1073116, 1406152, 1853564, 2146232, 2812304, 3707128, 4292464, 5097301, 7414256, 10194602, 20389204, 40778408, 81556816]

約数ペア:

[(1, 81556816), (2, 40778408), (4, 20389204), (8, 10194602), (11, 7414256), (16, 5097301), (19, 4292464), (22, 3707128), (29, 2812304), (38, 2146232), (44, 1853564), (58, 1406152), (76, 1073116), (88, 926782), (116, 703076), (152, 536558), (176, 463391), (209, 390224), (232, 351538), (304, 268279), (319, 255664), (418, 195112), (464, 175769), (551, 148016), (638, 127832), (836, 97556), (841, 96976), (1102, 74008), (1276, 63916), (1672, 48778), (1682, 48488), (2204, 37004), (2552, 31958), (3344, 24389), (3364, 24244), (4408, 18502), (5104, 15979), (6061, 13456), (6728, 12122), (8816, 9251)]