18439960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5987}}^1$

素因数の和:6016

約数の個数: 64

約数和(自身を含む): 51736320

約数和(自身を除く): 33296360

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 5987, 11974, 23948, 29935, 41909, 47896, 59870, 65857, 83818, 119740, 131714, 167636, 209545, 239480, 263428, 329285, 335272, 419090, 460999, 526856, 658570, 838180, 921998, 1317140, 1676360, 1843996, 2304995, 2634280, 3687992, 4609990, 9219980, 18439960]

約数ペア:

[(1, 18439960), (2, 9219980), (4, 4609990), (5, 3687992), (7, 2634280), (8, 2304995), (10, 1843996), (11, 1676360), (14, 1317140), (20, 921998), (22, 838180), (28, 658570), (35, 526856), (40, 460999), (44, 419090), (55, 335272), (56, 329285), (70, 263428), (77, 239480), (88, 209545), (110, 167636), (140, 131714), (154, 119740), (220, 83818), (280, 65857), (308, 59870), (385, 47896), (440, 41909), (616, 29935), (770, 23948), (1540, 11974), (3080, 5987)]