256386180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{251359}}^1$

素因数の和:251388

約数の個数: 48

約数和(自身を含む): 760112640

約数和(自身を除く): 503726460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 251359, 502718, 754077, 1005436, 1256795, 1508154, 2513590, 3016308, 3770385, 4273103, 5027180, 7540770, 8546206, 12819309, 15081540, 17092412, 21365515, 25638618, 42731030, 51277236, 64096545, 85462060, 128193090, 256386180]

約数ペア:

[(1, 256386180), (2, 128193090), (3, 85462060), (4, 64096545), (5, 51277236), (6, 42731030), (10, 25638618), (12, 21365515), (15, 17092412), (17, 15081540), (20, 12819309), (30, 8546206), (34, 7540770), (51, 5027180), (60, 4273103), (68, 3770385), (85, 3016308), (102, 2513590), (170, 1508154), (204, 1256795), (255, 1005436), (340, 754077), (510, 502718), (1020, 251359)]