319355560

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{194729}}^1$

素因数の和:194781

約数の個数: 32

約数和(自身を含む): 736079400

約数和(自身を除く): 416723840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 194729, 389458, 778916, 973645, 1557832, 1947290, 3894580, 7789160, 7983889, 15967778, 31935556, 39919445, 63871112, 79838890, 159677780, 319355560]

約数ペア:

[(1, 319355560), (2, 159677780), (4, 79838890), (5, 63871112), (8, 39919445), (10, 31935556), (20, 15967778), (40, 7983889), (41, 7789160), (82, 3894580), (164, 1947290), (205, 1557832), (328, 973645), (410, 778916), (820, 389458), (1640, 194729)]