11947880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{601}}^1$

素因数の和:690

約数の個数: 64

約数和(自身を含む): 31207680

約数和(自身を除く): 19259800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 601, 710, 994, 1202, 1420, 1988, 2404, 2485, 2840, 3005, 3976, 4207, 4808, 4970, 6010, 8414, 9940, 12020, 16828, 19880, 21035, 24040, 33656, 42070, 42671, 84140, 85342, 168280, 170684, 213355, 298697, 341368, 426710, 597394, 853420, 1194788, 1493485, 1706840, 2389576, 2986970, 5973940, 11947880]

約数ペア:

[(1, 11947880), (2, 5973940), (4, 2986970), (5, 2389576), (7, 1706840), (8, 1493485), (10, 1194788), (14, 853420), (20, 597394), (28, 426710), (35, 341368), (40, 298697), (56, 213355), (70, 170684), (71, 168280), (140, 85342), (142, 84140), (280, 42671), (284, 42070), (355, 33656), (497, 24040), (568, 21035), (601, 19880), (710, 16828), (994, 12020), (1202, 9940), (1420, 8414), (1988, 6010), (2404, 4970), (2485, 4808), (2840, 4207), (3005, 3976)]