6391420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:730

約数の個数: 48

約数和(自身を含む): 15579648

約数和(自身を除く): 9188228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 643, 710, 994, 1286, 1420, 1988, 2485, 2572, 3215, 4501, 4970, 6430, 9002, 9940, 12860, 18004, 22505, 45010, 45653, 90020, 91306, 182612, 228265, 319571, 456530, 639142, 913060, 1278284, 1597855, 3195710, 6391420]

約数ペア:

[(1, 6391420), (2, 3195710), (4, 1597855), (5, 1278284), (7, 913060), (10, 639142), (14, 456530), (20, 319571), (28, 228265), (35, 182612), (70, 91306), (71, 90020), (140, 45653), (142, 45010), (284, 22505), (355, 18004), (497, 12860), (643, 9940), (710, 9002), (994, 6430), (1286, 4970), (1420, 4501), (1988, 3215), (2485, 2572)]