255905000

素因数分解:

$2^3\times 5^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 160

約数和(自身を含む): 671784960

約数和(自身を除く): 415879960

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 31, 40, 50, 52, 62, 65, 100, 104, 124, 125, 127, 130, 155, 200, 248, 250, 254, 260, 310, 325, 403, 500, 508, 520, 620, 625, 635, 650, 775, 806, 1000, 1016, 1240, 1250, 1270, 1300, 1550, 1612, 1625, 1651, 2015, 2500, 2540, 2600, 3100, 3175, 3224, 3250, 3302, 3875, 3937, 4030, 5000, 5080, 6200, 6350, 6500, 6604, 7750, 7874, 8060, 8125, 8255, 10075, 12700, 13000, 13208, 15500, 15748, 15875, 16120, 16250, 16510, 19375, 19685, 20150, 25400, 31000, 31496, 31750, 32500, 33020, 38750, 39370, 40300, 41275, 50375, 51181, 63500, 65000, 66040, 77500, 78740, 79375, 80600, 82550, 98425, 100750, 102362, 127000, 155000, 157480, 158750, 165100, 196850, 201500, 204724, 206375, 251875, 255905, 317500, 330200, 393700, 403000, 409448, 412750, 492125, 503750, 511810, 635000, 787400, 825500, 984250, 1007500, 1023620, 1031875, 1279525, 1651000, 1968500, 2015000, 2047240, 2063750, 2460625, 2559050, 3937000, 4127500, 4921250, 5118100, 6397625, 8255000, 9842500, 10236200, 12795250, 19685000, 25590500, 31988125, 51181000, 63976250, 127952500, 255905000]

約数ペア:

[(1, 255905000), (2, 127952500), (4, 63976250), (5, 51181000), (8, 31988125), (10, 25590500), (13, 19685000), (20, 12795250), (25, 10236200), (26, 9842500), (31, 8255000), (40, 6397625), (50, 5118100), (52, 4921250), (62, 4127500), (65, 3937000), (100, 2559050), (104, 2460625), (124, 2063750), (125, 2047240), (127, 2015000), (130, 1968500), (155, 1651000), (200, 1279525), (248, 1031875), (250, 1023620), (254, 1007500), (260, 984250), (310, 825500), (325, 787400), (403, 635000), (500, 511810), (508, 503750), (520, 492125), (620, 412750), (625, 409448), (635, 403000), (650, 393700), (775, 330200), (806, 317500), (1000, 255905), (1016, 251875), (1240, 206375), (1250, 204724), (1270, 201500), (1300, 196850), (1550, 165100), (1612, 158750), (1625, 157480), (1651, 155000), (2015, 127000), (2500, 102362), (2540, 100750), (2600, 98425), (3100, 82550), (3175, 80600), (3224, 79375), (3250, 78740), (3302, 77500), (3875, 66040), (3937, 65000), (4030, 63500), (5000, 51181), (5080, 50375), (6200, 41275), (6350, 40300), (6500, 39370), (6604, 38750), (7750, 33020), (7874, 32500), (8060, 31750), (8125, 31496), (8255, 31000), (10075, 25400), (12700, 20150), (13000, 19685), (13208, 19375), (15500, 16510), (15748, 16250), (15875, 16120)]