128457840

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{76463}}^1$

素因数の和:76486

約数の個数: 80

約数和(自身を含む): 455113728

約数和(自身を除く): 326655888

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 76463, 152926, 229389, 305852, 382315, 458778, 535241, 611704, 764630, 917556, 1070482, 1146945, 1223408, 1529260, 1605723, 1835112, 2140964, 2293890, 2676205, 3058520, 3211446, 3670224, 4281928, 4587780, 5352410, 6117040, 6422892, 8028615, 8563856, 9175560, 10704820, 12845784, 16057230, 18351120, 21409640, 25691568, 32114460, 42819280, 64228920, 128457840]

約数ペア:

[(1, 128457840), (2, 64228920), (3, 42819280), (4, 32114460), (5, 25691568), (6, 21409640), (7, 18351120), (8, 16057230), (10, 12845784), (12, 10704820), (14, 9175560), (15, 8563856), (16, 8028615), (20, 6422892), (21, 6117040), (24, 5352410), (28, 4587780), (30, 4281928), (35, 3670224), (40, 3211446), (42, 3058520), (48, 2676205), (56, 2293890), (60, 2140964), (70, 1835112), (80, 1605723), (84, 1529260), (105, 1223408), (112, 1146945), (120, 1070482), (140, 917556), (168, 764630), (210, 611704), (240, 535241), (280, 458778), (336, 382315), (420, 305852), (560, 229389), (840, 152926), (1680, 76463)]