20159440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35999}}^1$

素因数の和:36019

約数の個数: 40

約数和(自身を含む): 53568000

約数和(自身を除く): 33408560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35999, 71998, 143996, 179995, 251993, 287992, 359990, 503986, 575984, 719980, 1007972, 1259965, 1439960, 2015944, 2519930, 2879920, 4031888, 5039860, 10079720, 20159440]

約数ペア:

[(1, 20159440), (2, 10079720), (4, 5039860), (5, 4031888), (7, 2879920), (8, 2519930), (10, 2015944), (14, 1439960), (16, 1259965), (20, 1007972), (28, 719980), (35, 575984), (40, 503986), (56, 359990), (70, 287992), (80, 251993), (112, 179995), (140, 143996), (280, 71998), (560, 35999)]