2780889600

素因数分解:

$2^9\times 3^1\times 5^2\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:691

約数の個数: 240

約数和(自身を含む): 9270344160

約数和(自身を除く): 6489454560

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 32, 40, 48, 50, 60, 64, 75, 80, 96, 100, 120, 128, 139, 150, 160, 192, 200, 240, 256, 278, 300, 320, 384, 400, 417, 480, 512, 521, 556, 600, 640, 695, 768, 800, 834, 960, 1042, 1112, 1200, 1280, 1390, 1536, 1563, 1600, 1668, 1920, 2084, 2085, 2224, 2400, 2560, 2605, 2780, 3126, 3200, 3336, 3475, 3840, 4168, 4170, 4448, 4800, 5210, 5560, 6252, 6400, 6672, 6950, 7680, 7815, 8336, 8340, 8896, 9600, 10420, 10425, 11120, 12504, 12800, 13025, 13344, 13900, 15630, 16672, 16680, 17792, 19200, 20840, 20850, 22240, 25008, 26050, 26688, 27800, 31260, 33344, 33360, 35584, 38400, 39075, 41680, 41700, 44480, 50016, 52100, 53376, 55600, 62520, 66688, 66720, 71168, 72419, 78150, 83360, 83400, 88960, 100032, 104200, 106752, 111200, 125040, 133376, 133440, 144838, 156300, 166720, 166800, 177920, 200064, 208400, 213504, 217257, 222400, 250080, 266752, 266880, 289676, 312600, 333440, 333600, 355840, 362095, 400128, 416800, 434514, 444800, 500160, 533760, 579352, 625200, 666880, 667200, 724190, 800256, 833600, 869028, 889600, 1000320, 1067520, 1086285, 1158704, 1250400, 1333760, 1334400, 1448380, 1667200, 1738056, 1779200, 1810475, 2000640, 2172570, 2317408, 2500800, 2668800, 2896760, 3334400, 3476112, 3620950, 4001280, 4345140, 4634816, 5001600, 5337600, 5431425, 5793520, 6668800, 6952224, 7241900, 8690280, 9269632, 10003200, 10862850, 11587040, 13904448, 14483800, 17380560, 18539264, 20006400, 21725700, 23174080, 27808896, 28967600, 34761120, 37078528, 43451400, 46348160, 55617792, 57935200, 69522240, 86902800, 92696320, 111235584, 115870400, 139044480, 173805600, 185392640, 231740800, 278088960, 347611200, 463481600, 556177920, 695222400, 926963200, 1390444800, 2780889600]

約数ペア:

[(1, 2780889600), (2, 1390444800), (3, 926963200), (4, 695222400), (5, 556177920), (6, 463481600), (8, 347611200), (10, 278088960), (12, 231740800), (15, 185392640), (16, 173805600), (20, 139044480), (24, 115870400), (25, 111235584), (30, 92696320), (32, 86902800), (40, 69522240), (48, 57935200), (50, 55617792), (60, 46348160), (64, 43451400), (75, 37078528), (80, 34761120), (96, 28967600), (100, 27808896), (120, 23174080), (128, 21725700), (139, 20006400), (150, 18539264), (160, 17380560), (192, 14483800), (200, 13904448), (240, 11587040), (256, 10862850), (278, 10003200), (300, 9269632), (320, 8690280), (384, 7241900), (400, 6952224), (417, 6668800), (480, 5793520), (512, 5431425), (521, 5337600), (556, 5001600), (600, 4634816), (640, 4345140), (695, 4001280), (768, 3620950), (800, 3476112), (834, 3334400), (960, 2896760), (1042, 2668800), (1112, 2500800), (1200, 2317408), (1280, 2172570), (1390, 2000640), (1536, 1810475), (1563, 1779200), (1600, 1738056), (1668, 1667200), (1920, 1448380), (2084, 1334400), (2085, 1333760), (2224, 1250400), (2400, 1158704), (2560, 1086285), (2605, 1067520), (2780, 1000320), (3126, 889600), (3200, 869028), (3336, 833600), (3475, 800256), (3840, 724190), (4168, 667200), (4170, 666880), (4448, 625200), (4800, 579352), (5210, 533760), (5560, 500160), (6252, 444800), (6400, 434514), (6672, 416800), (6950, 400128), (7680, 362095), (7815, 355840), (8336, 333600), (8340, 333440), (8896, 312600), (9600, 289676), (10420, 266880), (10425, 266752), (11120, 250080), (12504, 222400), (12800, 217257), (13025, 213504), (13344, 208400), (13900, 200064), (15630, 177920), (16672, 166800), (16680, 166720), (17792, 156300), (19200, 144838), (20840, 133440), (20850, 133376), (22240, 125040), (25008, 111200), (26050, 106752), (26688, 104200), (27800, 100032), (31260, 88960), (33344, 83400), (33360, 83360), (35584, 78150), (38400, 72419), (39075, 71168), (41680, 66720), (41700, 66688), (44480, 62520), (50016, 55600), (52100, 53376)]