81624665

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{181}}^1$

素因数の和:353

約数の個数: 32

約数和(自身を含む): 106928640

約数和(自身を除く): 25303975

約数列:

[1, 5, 19, 47, 95, 101, 181, 235, 505, 893, 905, 1919, 3439, 4465, 4747, 8507, 9595, 17195, 18281, 23735, 42535, 90193, 91405, 161633, 347339, 450965, 808165, 859207, 1736695, 4296035, 16324933, 81624665]

約数ペア:

[(1, 81624665), (5, 16324933), (19, 4296035), (47, 1736695), (95, 859207), (101, 808165), (181, 450965), (235, 347339), (505, 161633), (893, 91405), (905, 90193), (1919, 42535), (3439, 23735), (4465, 18281), (4747, 17195), (8507, 9595)]