20399573025

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{2749}}^1$

素因数の和:2880

約数の個数: 144

約数和(自身を含む): 40960920000

約数和(自身を除く): 20561346975

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 43, 45, 59, 65, 75, 117, 129, 177, 195, 215, 225, 295, 325, 387, 531, 559, 585, 645, 767, 885, 975, 1075, 1475, 1677, 1935, 2301, 2537, 2655, 2749, 2795, 2925, 3225, 3835, 4425, 5031, 6903, 7611, 8247, 8385, 9675, 11505, 12685, 13275, 13745, 13975, 19175, 22833, 24741, 25155, 32981, 34515, 35737, 38055, 41235, 41925, 57525, 63425, 68725, 98943, 107211, 114165, 118207, 123705, 125775, 162191, 164905, 172575, 178685, 190275, 206175, 296829, 321633, 354621, 486573, 494715, 536055, 570825, 591035, 618525, 810955, 824525, 893425, 1063863, 1459719, 1484145, 1536691, 1608165, 1773105, 2108483, 2432865, 2473575, 2680275, 2955175, 4054775, 4610073, 5319315, 6325449, 6974213, 7298595, 7420725, 7683455, 8040825, 8865525, 10542415, 12164325, 13830219, 18976347, 20922639, 23050365, 26596575, 31627245, 34871065, 36492975, 38417275, 52712075, 62767917, 69151095, 90664769, 94881735, 104613195, 115251825, 158136225, 174355325, 271994307, 313839585, 345755475, 453323845, 474408675, 523065975, 815982921, 1359971535, 1569197925, 2266619225, 4079914605, 6799857675, 20399573025]

約数ペア:

[(1, 20399573025), (3, 6799857675), (5, 4079914605), (9, 2266619225), (13, 1569197925), (15, 1359971535), (25, 815982921), (39, 523065975), (43, 474408675), (45, 453323845), (59, 345755475), (65, 313839585), (75, 271994307), (117, 174355325), (129, 158136225), (177, 115251825), (195, 104613195), (215, 94881735), (225, 90664769), (295, 69151095), (325, 62767917), (387, 52712075), (531, 38417275), (559, 36492975), (585, 34871065), (645, 31627245), (767, 26596575), (885, 23050365), (975, 20922639), (1075, 18976347), (1475, 13830219), (1677, 12164325), (1935, 10542415), (2301, 8865525), (2537, 8040825), (2655, 7683455), (2749, 7420725), (2795, 7298595), (2925, 6974213), (3225, 6325449), (3835, 5319315), (4425, 4610073), (5031, 4054775), (6903, 2955175), (7611, 2680275), (8247, 2473575), (8385, 2432865), (9675, 2108483), (11505, 1773105), (12685, 1608165), (13275, 1536691), (13745, 1484145), (13975, 1459719), (19175, 1063863), (22833, 893425), (24741, 824525), (25155, 810955), (32981, 618525), (34515, 591035), (35737, 570825), (38055, 536055), (41235, 494715), (41925, 486573), (57525, 354621), (63425, 321633), (68725, 296829), (98943, 206175), (107211, 190275), (114165, 178685), (118207, 172575), (123705, 164905), (125775, 162191)]