20861375600

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{1019}}^1$

素因数の和:1208

約数の個数: 240

約数和(自身を含む): 56209735680

約数和(自身を除く): 35348360080

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 40, 50, 52, 62, 65, 80, 100, 104, 124, 127, 130, 155, 200, 208, 248, 254, 260, 310, 325, 400, 403, 496, 508, 520, 620, 635, 650, 775, 806, 1016, 1019, 1040, 1240, 1270, 1300, 1550, 1612, 1651, 2015, 2032, 2038, 2480, 2540, 2600, 3100, 3175, 3224, 3302, 3937, 4030, 4076, 5080, 5095, 5200, 6200, 6350, 6448, 6604, 7874, 8060, 8152, 8255, 10075, 10160, 10190, 12400, 12700, 13208, 13247, 15748, 16120, 16304, 16510, 19685, 20150, 20380, 25400, 25475, 26416, 26494, 31496, 31589, 32240, 33020, 39370, 40300, 40760, 41275, 50800, 50950, 51181, 52988, 62992, 63178, 66040, 66235, 78740, 80600, 81520, 82550, 98425, 101900, 102362, 105976, 126356, 129413, 132080, 132470, 157480, 157945, 161200, 165100, 196850, 203800, 204724, 211952, 252712, 255905, 258826, 264940, 314960, 315890, 330200, 331175, 393700, 407600, 409448, 410657, 505424, 511810, 517652, 529880, 631780, 647065, 660400, 662350, 787400, 789725, 818896, 821314, 1023620, 1035304, 1059760, 1263560, 1279525, 1294130, 1324700, 1574800, 1579450, 1642628, 1682369, 2047240, 2053285, 2070608, 2527120, 2559050, 2588260, 2649400, 3158900, 3235325, 3285256, 3364738, 4011803, 4094480, 4106570, 5118100, 5176520, 5298800, 6317800, 6470650, 6570512, 6729476, 8023606, 8213140, 8411845, 10236200, 10266425, 10353040, 12635600, 12941300, 13458952, 16047212, 16426280, 16823690, 20059015, 20472400, 20532850, 25882600, 26917904, 32094424, 32852560, 33647380, 40118030, 41065700, 42059225, 51765200, 52153439, 64188848, 67294760, 80236060, 82131400, 84118450, 100295075, 104306878, 134589520, 160472120, 164262800, 168236900, 200590150, 208613756, 260767195, 320944240, 336473800, 401180300, 417227512, 521534390, 672947600, 802360600, 834455024, 1043068780, 1303835975, 1604721200, 2086137560, 2607671950, 4172275120, 5215343900, 10430687800, 20861375600]

約数ペア:

[(1, 20861375600), (2, 10430687800), (4, 5215343900), (5, 4172275120), (8, 2607671950), (10, 2086137560), (13, 1604721200), (16, 1303835975), (20, 1043068780), (25, 834455024), (26, 802360600), (31, 672947600), (40, 521534390), (50, 417227512), (52, 401180300), (62, 336473800), (65, 320944240), (80, 260767195), (100, 208613756), (104, 200590150), (124, 168236900), (127, 164262800), (130, 160472120), (155, 134589520), (200, 104306878), (208, 100295075), (248, 84118450), (254, 82131400), (260, 80236060), (310, 67294760), (325, 64188848), (400, 52153439), (403, 51765200), (496, 42059225), (508, 41065700), (520, 40118030), (620, 33647380), (635, 32852560), (650, 32094424), (775, 26917904), (806, 25882600), (1016, 20532850), (1019, 20472400), (1040, 20059015), (1240, 16823690), (1270, 16426280), (1300, 16047212), (1550, 13458952), (1612, 12941300), (1651, 12635600), (2015, 10353040), (2032, 10266425), (2038, 10236200), (2480, 8411845), (2540, 8213140), (2600, 8023606), (3100, 6729476), (3175, 6570512), (3224, 6470650), (3302, 6317800), (3937, 5298800), (4030, 5176520), (4076, 5118100), (5080, 4106570), (5095, 4094480), (5200, 4011803), (6200, 3364738), (6350, 3285256), (6448, 3235325), (6604, 3158900), (7874, 2649400), (8060, 2588260), (8152, 2559050), (8255, 2527120), (10075, 2070608), (10160, 2053285), (10190, 2047240), (12400, 1682369), (12700, 1642628), (13208, 1579450), (13247, 1574800), (15748, 1324700), (16120, 1294130), (16304, 1279525), (16510, 1263560), (19685, 1059760), (20150, 1035304), (20380, 1023620), (25400, 821314), (25475, 818896), (26416, 789725), (26494, 787400), (31496, 662350), (31589, 660400), (32240, 647065), (33020, 631780), (39370, 529880), (40300, 517652), (40760, 511810), (41275, 505424), (50800, 410657), (50950, 409448), (51181, 407600), (52988, 393700), (62992, 331175), (63178, 330200), (66040, 315890), (66235, 314960), (78740, 264940), (80600, 258826), (81520, 255905), (82550, 252712), (98425, 211952), (101900, 204724), (102362, 203800), (105976, 196850), (126356, 165100), (129413, 161200), (132080, 157945), (132470, 157480)]