289968340

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{133013}}^1$

素因数の和:133131

約数の個数: 24

約数和(自身を含む): 614524680

約数和(自身を除く): 324556340

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 133013, 266026, 532052, 665065, 1330130, 2660260, 14498417, 28996834, 57993668, 72492085, 144984170, 289968340]

約数ペア:

[(1, 289968340), (2, 144984170), (4, 72492085), (5, 57993668), (10, 28996834), (20, 14498417), (109, 2660260), (218, 1330130), (436, 665065), (545, 532052), (1090, 266026), (2180, 133013)]