859360360

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{197101}}^1$

素因数の和:197221

約数の個数: 32

約数和(自身を含む): 1951309800

約数和(自身を除く): 1091949440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 197101, 394202, 788404, 985505, 1576808, 1971010, 3942020, 7884040, 21484009, 42968018, 85936036, 107420045, 171872072, 214840090, 429680180, 859360360]

約数ペア:

[(1, 859360360), (2, 429680180), (4, 214840090), (5, 171872072), (8, 107420045), (10, 85936036), (20, 42968018), (40, 21484009), (109, 7884040), (218, 3942020), (436, 1971010), (545, 1576808), (872, 985505), (1090, 788404), (2180, 394202), (4360, 197101)]