84100040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19289}}^1$

素因数の和:19409

約数の個数: 32

約数和(自身を含む): 190971000

約数和(自身を除く): 106870960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 19289, 38578, 77156, 96445, 154312, 192890, 385780, 771560, 2102501, 4205002, 8410004, 10512505, 16820008, 21025010, 42050020, 84100040]

約数ペア:

[(1, 84100040), (2, 42050020), (4, 21025010), (5, 16820008), (8, 10512505), (10, 8410004), (20, 4205002), (40, 2102501), (109, 771560), (218, 385780), (436, 192890), (545, 154312), (872, 96445), (1090, 77156), (2180, 38578), (4360, 19289)]