81966760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{3719}}^1$

素因数の和:3778

約数の個数: 64

約数和(自身を含む): 200880000

約数和(自身を除く): 118913240

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 29, 38, 40, 58, 76, 95, 116, 145, 152, 190, 232, 290, 380, 551, 580, 760, 1102, 1160, 2204, 2755, 3719, 4408, 5510, 7438, 11020, 14876, 18595, 22040, 29752, 37190, 70661, 74380, 107851, 141322, 148760, 215702, 282644, 353305, 431404, 539255, 565288, 706610, 862808, 1078510, 1413220, 2049169, 2157020, 2826440, 4098338, 4314040, 8196676, 10245845, 16393352, 20491690, 40983380, 81966760]

約数ペア:

[(1, 81966760), (2, 40983380), (4, 20491690), (5, 16393352), (8, 10245845), (10, 8196676), (19, 4314040), (20, 4098338), (29, 2826440), (38, 2157020), (40, 2049169), (58, 1413220), (76, 1078510), (95, 862808), (116, 706610), (145, 565288), (152, 539255), (190, 431404), (232, 353305), (290, 282644), (380, 215702), (551, 148760), (580, 141322), (760, 107851), (1102, 74380), (1160, 70661), (2204, 37190), (2755, 29752), (3719, 22040), (4408, 18595), (5510, 14876), (7438, 11020)]