640306800

素因数分解:

$2^4\times 3^2\times 5^2\times 7^1\times {\mathrm{25409}}^1$

素因数の和:25440

約数の個数: 180

約数和(自身を含む): 2539577040

約数和(自身を除く): 1899270240

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 112, 120, 126, 140, 144, 150, 168, 175, 180, 200, 210, 225, 240, 252, 280, 300, 315, 336, 350, 360, 400, 420, 450, 504, 525, 560, 600, 630, 700, 720, 840, 900, 1008, 1050, 1200, 1260, 1400, 1575, 1680, 1800, 2100, 2520, 2800, 3150, 3600, 4200, 5040, 6300, 8400, 12600, 25200, 25409, 50818, 76227, 101636, 127045, 152454, 177863, 203272, 228681, 254090, 304908, 355726, 381135, 406544, 457362, 508180, 533589, 609816, 635225, 711452, 762270, 889315, 914724, 1016360, 1067178, 1143405, 1219632, 1270450, 1422904, 1524540, 1600767, 1778630, 1829448, 1905675, 2032720, 2134356, 2286810, 2540900, 2667945, 2845808, 3049080, 3201534, 3557260, 3658896, 3811350, 4268712, 4446575, 4573620, 5081800, 5335890, 5717025, 6098160, 6403068, 7114520, 7622700, 8003835, 8537424, 8893150, 9147240, 10163600, 10671780, 11434050, 12806136, 13339725, 14229040, 15245400, 16007670, 17786300, 18294480, 21343560, 22868100, 25612272, 26679450, 30490800, 32015340, 35572600, 40019175, 42687120, 45736200, 53358900, 64030680, 71145200, 80038350, 91472400, 106717800, 128061360, 160076700, 213435600, 320153400, 640306800]

約数ペア:

[(1, 640306800), (2, 320153400), (3, 213435600), (4, 160076700), (5, 128061360), (6, 106717800), (7, 91472400), (8, 80038350), (9, 71145200), (10, 64030680), (12, 53358900), (14, 45736200), (15, 42687120), (16, 40019175), (18, 35572600), (20, 32015340), (21, 30490800), (24, 26679450), (25, 25612272), (28, 22868100), (30, 21343560), (35, 18294480), (36, 17786300), (40, 16007670), (42, 15245400), (45, 14229040), (48, 13339725), (50, 12806136), (56, 11434050), (60, 10671780), (63, 10163600), (70, 9147240), (72, 8893150), (75, 8537424), (80, 8003835), (84, 7622700), (90, 7114520), (100, 6403068), (105, 6098160), (112, 5717025), (120, 5335890), (126, 5081800), (140, 4573620), (144, 4446575), (150, 4268712), (168, 3811350), (175, 3658896), (180, 3557260), (200, 3201534), (210, 3049080), (225, 2845808), (240, 2667945), (252, 2540900), (280, 2286810), (300, 2134356), (315, 2032720), (336, 1905675), (350, 1829448), (360, 1778630), (400, 1600767), (420, 1524540), (450, 1422904), (504, 1270450), (525, 1219632), (560, 1143405), (600, 1067178), (630, 1016360), (700, 914724), (720, 889315), (840, 762270), (900, 711452), (1008, 635225), (1050, 609816), (1200, 533589), (1260, 508180), (1400, 457362), (1575, 406544), (1680, 381135), (1800, 355726), (2100, 304908), (2520, 254090), (2800, 228681), (3150, 203272), (3600, 177863), (4200, 152454), (5040, 127045), (6300, 101636), (8400, 76227), (12600, 50818), (25200, 25409)]