20888913780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{199741}}^1$

素因数の和:199846

約数の個数: 144

約数和(自身を含む): 73287736704

約数和(自身を除く): 52398822924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 83, 84, 90, 105, 126, 140, 166, 180, 210, 249, 252, 315, 332, 415, 420, 498, 581, 630, 747, 830, 996, 1162, 1245, 1260, 1494, 1660, 1743, 2324, 2490, 2905, 2988, 3486, 3735, 4980, 5229, 5810, 6972, 7470, 8715, 10458, 11620, 14940, 17430, 20916, 26145, 34860, 52290, 104580, 199741, 399482, 599223, 798964, 998705, 1198446, 1398187, 1797669, 1997410, 2396892, 2796374, 2996115, 3595338, 3994820, 4194561, 5592748, 5992230, 6990935, 7190676, 8389122, 8988345, 11984460, 12583683, 13981870, 16578503, 16778244, 17976690, 20972805, 25167366, 27963740, 33157006, 35953380, 41945610, 49735509, 50334732, 62918415, 66314012, 82892515, 83891220, 99471018, 116049521, 125836830, 149206527, 165785030, 198942036, 232099042, 248677545, 251673660, 298413054, 331570060, 348148563, 464198084, 497355090, 580247605, 596826108, 696297126, 746032635, 994710180, 1044445689, 1160495210, 1392594252, 1492065270, 1740742815, 2088891378, 2320990420, 2984130540, 3481485630, 4177782756, 5222228445, 6962971260, 10444456890, 20888913780]

約数ペア:

[(1, 20888913780), (2, 10444456890), (3, 6962971260), (4, 5222228445), (5, 4177782756), (6, 3481485630), (7, 2984130540), (9, 2320990420), (10, 2088891378), (12, 1740742815), (14, 1492065270), (15, 1392594252), (18, 1160495210), (20, 1044445689), (21, 994710180), (28, 746032635), (30, 696297126), (35, 596826108), (36, 580247605), (42, 497355090), (45, 464198084), (60, 348148563), (63, 331570060), (70, 298413054), (83, 251673660), (84, 248677545), (90, 232099042), (105, 198942036), (126, 165785030), (140, 149206527), (166, 125836830), (180, 116049521), (210, 99471018), (249, 83891220), (252, 82892515), (315, 66314012), (332, 62918415), (415, 50334732), (420, 49735509), (498, 41945610), (581, 35953380), (630, 33157006), (747, 27963740), (830, 25167366), (996, 20972805), (1162, 17976690), (1245, 16778244), (1260, 16578503), (1494, 13981870), (1660, 12583683), (1743, 11984460), (2324, 8988345), (2490, 8389122), (2905, 7190676), (2988, 6990935), (3486, 5992230), (3735, 5592748), (4980, 4194561), (5229, 3994820), (5810, 3595338), (6972, 2996115), (7470, 2796374), (8715, 2396892), (10458, 1997410), (11620, 1797669), (14940, 1398187), (17430, 1198446), (20916, 998705), (26145, 798964), (34860, 599223), (52290, 399482), (104580, 199741)]