280147000

素因数分解:

$2^3\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1291}}^1$

素因数の和:1350

約数の個数: 128

約数和(自身を含む): 773959680

約数和(自身を除く): 493812680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 31, 35, 40, 50, 56, 62, 70, 100, 124, 125, 140, 155, 175, 200, 217, 248, 250, 280, 310, 350, 434, 500, 620, 700, 775, 868, 875, 1000, 1085, 1240, 1291, 1400, 1550, 1736, 1750, 2170, 2582, 3100, 3500, 3875, 4340, 5164, 5425, 6200, 6455, 7000, 7750, 8680, 9037, 10328, 10850, 12910, 15500, 18074, 21700, 25820, 27125, 31000, 32275, 36148, 40021, 43400, 45185, 51640, 54250, 64550, 72296, 80042, 90370, 108500, 129100, 160084, 161375, 180740, 200105, 217000, 225925, 258200, 280147, 320168, 322750, 361480, 400210, 451850, 560294, 645500, 800420, 903700, 1000525, 1120588, 1129625, 1291000, 1400735, 1600840, 1807400, 2001050, 2241176, 2259250, 2801470, 4002100, 4518500, 5002625, 5602940, 7003675, 8004200, 9037000, 10005250, 11205880, 14007350, 20010500, 28014700, 35018375, 40021000, 56029400, 70036750, 140073500, 280147000]

約数ペア:

[(1, 280147000), (2, 140073500), (4, 70036750), (5, 56029400), (7, 40021000), (8, 35018375), (10, 28014700), (14, 20010500), (20, 14007350), (25, 11205880), (28, 10005250), (31, 9037000), (35, 8004200), (40, 7003675), (50, 5602940), (56, 5002625), (62, 4518500), (70, 4002100), (100, 2801470), (124, 2259250), (125, 2241176), (140, 2001050), (155, 1807400), (175, 1600840), (200, 1400735), (217, 1291000), (248, 1129625), (250, 1120588), (280, 1000525), (310, 903700), (350, 800420), (434, 645500), (500, 560294), (620, 451850), (700, 400210), (775, 361480), (868, 322750), (875, 320168), (1000, 280147), (1085, 258200), (1240, 225925), (1291, 217000), (1400, 200105), (1550, 180740), (1736, 161375), (1750, 160084), (2170, 129100), (2582, 108500), (3100, 90370), (3500, 80042), (3875, 72296), (4340, 64550), (5164, 54250), (5425, 51640), (6200, 45185), (6455, 43400), (7000, 40021), (7750, 36148), (8680, 32275), (9037, 31000), (10328, 27125), (10850, 25820), (12910, 21700), (15500, 18074)]