31090840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3719}}^1$

素因数の和:3760

約数の個数: 64

約数和(自身を含む): 80352000

約数和(自身を除く): 49261160

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 110, 152, 190, 209, 220, 380, 418, 440, 760, 836, 1045, 1672, 2090, 3719, 4180, 7438, 8360, 14876, 18595, 29752, 37190, 40909, 70661, 74380, 81818, 141322, 148760, 163636, 204545, 282644, 327272, 353305, 409090, 565288, 706610, 777271, 818180, 1413220, 1554542, 1636360, 2826440, 3109084, 3886355, 6218168, 7772710, 15545420, 31090840]

約数ペア:

[(1, 31090840), (2, 15545420), (4, 7772710), (5, 6218168), (8, 3886355), (10, 3109084), (11, 2826440), (19, 1636360), (20, 1554542), (22, 1413220), (38, 818180), (40, 777271), (44, 706610), (55, 565288), (76, 409090), (88, 353305), (95, 327272), (110, 282644), (152, 204545), (190, 163636), (209, 148760), (220, 141322), (380, 81818), (418, 74380), (440, 70661), (760, 40909), (836, 37190), (1045, 29752), (1672, 18595), (2090, 14876), (3719, 8360), (4180, 7438)]