20887102470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{421}}^1\times {\mathrm{5531}}^1$

素因数の和:5998

約数の個数: 128

約数和(自身を含む): 56476320768

約数和(自身を除く): 35589218298

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 23, 26, 30, 39, 46, 65, 69, 78, 115, 130, 138, 195, 230, 299, 345, 390, 421, 598, 690, 842, 897, 1263, 1495, 1794, 2105, 2526, 2990, 4210, 4485, 5473, 5531, 6315, 8970, 9683, 10946, 11062, 12630, 16419, 16593, 19366, 27365, 27655, 29049, 32838, 33186, 48415, 54730, 55310, 58098, 71903, 82095, 82965, 96830, 125879, 127213, 143806, 145245, 164190, 165930, 215709, 251758, 254426, 290490, 359515, 377637, 381639, 431418, 629395, 636065, 719030, 755274, 763278, 1078545, 1258790, 1272130, 1653769, 1888185, 1908195, 2157090, 2328551, 3307538, 3776370, 3816390, 4657102, 4961307, 6985653, 8268845, 9922614, 11642755, 13971306, 16537690, 23285510, 24806535, 30271163, 34928265, 49613070, 53556673, 60542326, 69856530, 90813489, 107113346, 151355815, 160670019, 181626978, 267783365, 302711630, 321340038, 454067445, 535566730, 696236749, 803350095, 908134890, 1392473498, 1606700190, 2088710247, 3481183745, 4177420494, 6962367490, 10443551235, 20887102470]

約数ペア:

[(1, 20887102470), (2, 10443551235), (3, 6962367490), (5, 4177420494), (6, 3481183745), (10, 2088710247), (13, 1606700190), (15, 1392473498), (23, 908134890), (26, 803350095), (30, 696236749), (39, 535566730), (46, 454067445), (65, 321340038), (69, 302711630), (78, 267783365), (115, 181626978), (130, 160670019), (138, 151355815), (195, 107113346), (230, 90813489), (299, 69856530), (345, 60542326), (390, 53556673), (421, 49613070), (598, 34928265), (690, 30271163), (842, 24806535), (897, 23285510), (1263, 16537690), (1495, 13971306), (1794, 11642755), (2105, 9922614), (2526, 8268845), (2990, 6985653), (4210, 4961307), (4485, 4657102), (5473, 3816390), (5531, 3776370), (6315, 3307538), (8970, 2328551), (9683, 2157090), (10946, 1908195), (11062, 1888185), (12630, 1653769), (16419, 1272130), (16593, 1258790), (19366, 1078545), (27365, 763278), (27655, 755274), (29049, 719030), (32838, 636065), (33186, 629395), (48415, 431418), (54730, 381639), (55310, 377637), (58098, 359515), (71903, 290490), (82095, 254426), (82965, 251758), (96830, 215709), (125879, 165930), (127213, 164190), (143806, 145245)]