261340

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:261

約数の個数: 24

約数和(自身を含む): 559440

約数和(自身を除く): 298100

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 179, 292, 358, 365, 716, 730, 895, 1460, 1790, 3580, 13067, 26134, 52268, 65335, 130670, 261340]

約数ペア:

[(1, 261340), (2, 130670), (4, 65335), (5, 52268), (10, 26134), (20, 13067), (73, 3580), (146, 1790), (179, 1460), (292, 895), (358, 730), (365, 716)]