289720220

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{308213}}^1$

素因数の和:308269

約数の個数: 24

約数和(自身を含む): 621359424

約数和(自身を除く): 331639204

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 308213, 616426, 1232852, 1541065, 3082130, 6164260, 14486011, 28972022, 57944044, 72430055, 144860110, 289720220]

約数ペア:

[(1, 289720220), (2, 144860110), (4, 72430055), (5, 57944044), (10, 28972022), (20, 14486011), (47, 6164260), (94, 3082130), (188, 1541065), (235, 1232852), (470, 616426), (940, 308213)]