256266670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3187}}^1$

素因数の和:3265

約数の個数: 64

約数和(自身を含む): 545377536

約数和(自身を除く): 289110866

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 43, 55, 85, 86, 110, 170, 187, 215, 374, 430, 473, 731, 935, 946, 1462, 1870, 2365, 3187, 3655, 4730, 6374, 7310, 8041, 15935, 16082, 31870, 35057, 40205, 54179, 70114, 80410, 108358, 137041, 175285, 270895, 274082, 350570, 541790, 595969, 685205, 1191938, 1370410, 1507451, 2329697, 2979845, 3014902, 4659394, 5959690, 7537255, 11648485, 15074510, 23296970, 25626667, 51253334, 128133335, 256266670]

約数ペア:

[(1, 256266670), (2, 128133335), (5, 51253334), (10, 25626667), (11, 23296970), (17, 15074510), (22, 11648485), (34, 7537255), (43, 5959690), (55, 4659394), (85, 3014902), (86, 2979845), (110, 2329697), (170, 1507451), (187, 1370410), (215, 1191938), (374, 685205), (430, 595969), (473, 541790), (731, 350570), (935, 274082), (946, 270895), (1462, 175285), (1870, 137041), (2365, 108358), (3187, 80410), (3655, 70114), (4730, 54179), (6374, 40205), (7310, 35057), (8041, 31870), (15935, 16082)]