20171728204

素因数分解:

$2^2\times {\mathrm{137}}^1\times {\mathrm{151}}^1\times {\mathrm{317}}^1\times {\mathrm{769}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 35953283520

約数和(自身を除く): 15781555316

約数列:

[1, 2, 4, 137, 151, 274, 302, 317, 548, 604, 634, 769, 1268, 1538, 3076, 20687, 41374, 43429, 47867, 82748, 86858, 95734, 105353, 116119, 173716, 191468, 210706, 232238, 243773, 421412, 464476, 487546, 975092, 6557779, 13115558, 15908303, 26231116, 31816606, 33396901, 36809723, 63633212, 66793802, 73619446, 133587604, 147238892, 5042932051, 10085864102, 20171728204]

約数ペア:

[(1, 20171728204), (2, 10085864102), (4, 5042932051), (137, 147238892), (151, 133587604), (274, 73619446), (302, 66793802), (317, 63633212), (548, 36809723), (604, 33396901), (634, 31816606), (769, 26231116), (1268, 15908303), (1538, 13115558), (3076, 6557779), (20687, 975092), (41374, 487546), (43429, 464476), (47867, 421412), (82748, 243773), (86858, 232238), (95734, 210706), (105353, 191468), (116119, 173716)]