31181774

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:177

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 26879026

約数列:

[1, 2, 13, 17, 19, 26, 34, 38, 47, 79, 94, 158, 221, 247, 323, 442, 494, 611, 646, 799, 893, 1027, 1222, 1343, 1501, 1598, 1786, 2054, 2686, 3002, 3713, 4199, 7426, 8398, 10387, 11609, 15181, 17459, 19513, 20774, 23218, 25517, 30362, 34918, 39026, 48269, 51034, 63121, 70547, 96538, 126242, 141094, 197353, 331721, 394706, 663442, 820573, 917111, 1199299, 1641146, 1834222, 2398598, 15590887, 31181774]

約数ペア:

[(1, 31181774), (2, 15590887), (13, 2398598), (17, 1834222), (19, 1641146), (26, 1199299), (34, 917111), (38, 820573), (47, 663442), (79, 394706), (94, 331721), (158, 197353), (221, 141094), (247, 126242), (323, 96538), (442, 70547), (494, 63121), (611, 51034), (646, 48269), (799, 39026), (893, 34918), (1027, 30362), (1222, 25517), (1343, 23218), (1501, 20774), (1598, 19513), (1786, 17459), (2054, 15181), (2686, 11609), (3002, 10387), (3713, 8398), (4199, 7426)]