2815120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{457}}^1$

素因数の和:488

約数の個数: 80

約数和(自身を含む): 8178048

約数和(自身を除く): 5362928

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 457, 560, 616, 770, 880, 914, 1232, 1540, 1828, 2285, 3080, 3199, 3656, 4570, 5027, 6160, 6398, 7312, 9140, 10054, 12796, 15995, 18280, 20108, 25135, 25592, 31990, 35189, 36560, 40216, 50270, 51184, 63980, 70378, 80432, 100540, 127960, 140756, 175945, 201080, 255920, 281512, 351890, 402160, 563024, 703780, 1407560, 2815120]

約数ペア:

[(1, 2815120), (2, 1407560), (4, 703780), (5, 563024), (7, 402160), (8, 351890), (10, 281512), (11, 255920), (14, 201080), (16, 175945), (20, 140756), (22, 127960), (28, 100540), (35, 80432), (40, 70378), (44, 63980), (55, 51184), (56, 50270), (70, 40216), (77, 36560), (80, 35189), (88, 31990), (110, 25592), (112, 25135), (140, 20108), (154, 18280), (176, 15995), (220, 12796), (280, 10054), (308, 9140), (385, 7312), (440, 6398), (457, 6160), (560, 5027), (616, 4570), (770, 3656), (880, 3199), (914, 3080), (1232, 2285), (1540, 1828)]