820565768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{490769}}^1$

素因数の和:490805

約数の個数: 32

約数和(自身を含む): 1766772000

約数和(自身を除く): 946206232

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 490769, 981538, 1963076, 3926152, 5398459, 9324611, 10796918, 18649222, 21593836, 37298444, 43187672, 74596888, 102570721, 205141442, 410282884, 820565768]

約数ペア:

[(1, 820565768), (2, 410282884), (4, 205141442), (8, 102570721), (11, 74596888), (19, 43187672), (22, 37298444), (38, 21593836), (44, 18649222), (76, 10796918), (88, 9324611), (152, 5398459), (209, 3926152), (418, 1963076), (836, 981538), (1672, 490769)]