281640450

素因数分解:

$2^1\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{439}}^1$

素因数の和:521

約数の個数: 192

約数和(自身を含む): 879943680

約数和(自身を除く): 598303230

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 25, 26, 30, 35, 39, 42, 47, 50, 65, 70, 75, 78, 91, 94, 105, 130, 141, 150, 175, 182, 195, 210, 235, 273, 282, 325, 329, 350, 390, 439, 455, 470, 525, 546, 611, 650, 658, 705, 878, 910, 975, 987, 1050, 1175, 1222, 1317, 1365, 1410, 1645, 1833, 1950, 1974, 2195, 2275, 2350, 2634, 2730, 3055, 3073, 3290, 3525, 3666, 4277, 4390, 4550, 4935, 5707, 6110, 6146, 6585, 6825, 7050, 8225, 8554, 9165, 9219, 9870, 10975, 11414, 12831, 13170, 13650, 15275, 15365, 16450, 17121, 18330, 18438, 20633, 21385, 21950, 24675, 25662, 28535, 30550, 30730, 32925, 34242, 39949, 41266, 42770, 45825, 46095, 49350, 57070, 61899, 64155, 65850, 76825, 79898, 85605, 91650, 92190, 103165, 106925, 119847, 123798, 128310, 142675, 144431, 153650, 171210, 199745, 206330, 213850, 230475, 239694, 268229, 285350, 288862, 309495, 320775, 399490, 428025, 433293, 460950, 515825, 536458, 599235, 618990, 641550, 722155, 804687, 856050, 866586, 998725, 1031650, 1198470, 1341145, 1444310, 1547475, 1609374, 1877603, 1997450, 2166465, 2682290, 2996175, 3094950, 3610775, 3755206, 4023435, 4332930, 5632809, 5992350, 6705725, 7221550, 8046870, 9388015, 10832325, 11265618, 13411450, 18776030, 20117175, 21664650, 28164045, 40234350, 46940075, 56328090, 93880150, 140820225, 281640450]

約数ペア:

[(1, 281640450), (2, 140820225), (3, 93880150), (5, 56328090), (6, 46940075), (7, 40234350), (10, 28164045), (13, 21664650), (14, 20117175), (15, 18776030), (21, 13411450), (25, 11265618), (26, 10832325), (30, 9388015), (35, 8046870), (39, 7221550), (42, 6705725), (47, 5992350), (50, 5632809), (65, 4332930), (70, 4023435), (75, 3755206), (78, 3610775), (91, 3094950), (94, 2996175), (105, 2682290), (130, 2166465), (141, 1997450), (150, 1877603), (175, 1609374), (182, 1547475), (195, 1444310), (210, 1341145), (235, 1198470), (273, 1031650), (282, 998725), (325, 866586), (329, 856050), (350, 804687), (390, 722155), (439, 641550), (455, 618990), (470, 599235), (525, 536458), (546, 515825), (611, 460950), (650, 433293), (658, 428025), (705, 399490), (878, 320775), (910, 309495), (975, 288862), (987, 285350), (1050, 268229), (1175, 239694), (1222, 230475), (1317, 213850), (1365, 206330), (1410, 199745), (1645, 171210), (1833, 153650), (1950, 144431), (1974, 142675), (2195, 128310), (2275, 123798), (2350, 119847), (2634, 106925), (2730, 103165), (3055, 92190), (3073, 91650), (3290, 85605), (3525, 79898), (3666, 76825), (4277, 65850), (4390, 64155), (4550, 61899), (4935, 57070), (5707, 49350), (6110, 46095), (6146, 45825), (6585, 42770), (6825, 41266), (7050, 39949), (8225, 34242), (8554, 32925), (9165, 30730), (9219, 30550), (9870, 28535), (10975, 25662), (11414, 24675), (12831, 21950), (13170, 21385), (13650, 20633), (15275, 18438), (15365, 18330), (16450, 17121)]