80855820

素因数分解:

$2^2\times 3^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:282

約数の個数: 144

約数和(自身を含む): 258306048

約数和(自身を除く): 177450228

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 127, 131, 135, 162, 180, 243, 254, 262, 270, 324, 381, 393, 405, 486, 508, 524, 540, 635, 655, 762, 786, 810, 972, 1143, 1179, 1215, 1270, 1310, 1524, 1572, 1620, 1905, 1965, 2286, 2358, 2430, 2540, 2620, 3429, 3537, 3810, 3930, 4572, 4716, 4860, 5715, 5895, 6858, 7074, 7620, 7860, 10287, 10611, 11430, 11790, 13716, 14148, 16637, 17145, 17685, 20574, 21222, 22860, 23580, 30861, 31833, 33274, 34290, 35370, 41148, 42444, 49911, 51435, 53055, 61722, 63666, 66548, 68580, 70740, 83185, 99822, 102870, 106110, 123444, 127332, 149733, 154305, 159165, 166370, 199644, 205740, 212220, 249555, 299466, 308610, 318330, 332740, 449199, 499110, 598932, 617220, 636660, 748665, 898398, 998220, 1347597, 1497330, 1796796, 2245995, 2695194, 2994660, 4042791, 4491990, 5390388, 6737985, 8085582, 8983980, 13475970, 16171164, 20213955, 26951940, 40427910, 80855820]

約数ペア:

[(1, 80855820), (2, 40427910), (3, 26951940), (4, 20213955), (5, 16171164), (6, 13475970), (9, 8983980), (10, 8085582), (12, 6737985), (15, 5390388), (18, 4491990), (20, 4042791), (27, 2994660), (30, 2695194), (36, 2245995), (45, 1796796), (54, 1497330), (60, 1347597), (81, 998220), (90, 898398), (108, 748665), (127, 636660), (131, 617220), (135, 598932), (162, 499110), (180, 449199), (243, 332740), (254, 318330), (262, 308610), (270, 299466), (324, 249555), (381, 212220), (393, 205740), (405, 199644), (486, 166370), (508, 159165), (524, 154305), (540, 149733), (635, 127332), (655, 123444), (762, 106110), (786, 102870), (810, 99822), (972, 83185), (1143, 70740), (1179, 68580), (1215, 66548), (1270, 63666), (1310, 61722), (1524, 53055), (1572, 51435), (1620, 49911), (1905, 42444), (1965, 41148), (2286, 35370), (2358, 34290), (2430, 33274), (2540, 31833), (2620, 30861), (3429, 23580), (3537, 22860), (3810, 21222), (3930, 20574), (4572, 17685), (4716, 17145), (4860, 16637), (5715, 14148), (5895, 13716), (6858, 11790), (7074, 11430), (7620, 10611), (7860, 10287)]