2018400400

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{265579}}^1$

素因数の和:265616

約数の個数: 60

約数和(自身を含む): 5104447600

約数和(自身を除く): 3086047200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 265579, 531158, 1062316, 1327895, 2124632, 2655790, 4249264, 5046001, 5311580, 6639475, 10092002, 10623160, 13278950, 20184004, 21246320, 25230005, 26557900, 40368008, 50460010, 53115800, 80736016, 100920020, 106231600, 126150025, 201840040, 252300050, 403680080, 504600100, 1009200200, 2018400400]

約数ペア:

[(1, 2018400400), (2, 1009200200), (4, 504600100), (5, 403680080), (8, 252300050), (10, 201840040), (16, 126150025), (19, 106231600), (20, 100920020), (25, 80736016), (38, 53115800), (40, 50460010), (50, 40368008), (76, 26557900), (80, 25230005), (95, 21246320), (100, 20184004), (152, 13278950), (190, 10623160), (200, 10092002), (304, 6639475), (380, 5311580), (400, 5046001), (475, 4249264), (760, 2655790), (950, 2124632), (1520, 1327895), (1900, 1062316), (3800, 531158), (7600, 265579)]