298612040

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{68489}}^1$

素因数の和:68609

約数の個数: 32

約数和(自身を含む): 678051000

約数和(自身を除く): 379438960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 68489, 136978, 273956, 342445, 547912, 684890, 1369780, 2739560, 7465301, 14930602, 29861204, 37326505, 59722408, 74653010, 149306020, 298612040]

約数ペア:

[(1, 298612040), (2, 149306020), (4, 74653010), (5, 59722408), (8, 37326505), (10, 29861204), (20, 14930602), (40, 7465301), (109, 2739560), (218, 1369780), (436, 684890), (545, 547912), (872, 342445), (1090, 273956), (2180, 136978), (4360, 68489)]