205429520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{135151}}^1$

素因数の和:135183

約数の個数: 40

約数和(自身を含む): 502765440

約数和(自身を除く): 297335920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 135151, 270302, 540604, 675755, 1081208, 1351510, 2162416, 2567869, 2703020, 5135738, 5406040, 10271476, 10812080, 12839345, 20542952, 25678690, 41085904, 51357380, 102714760, 205429520]

約数ペア:

[(1, 205429520), (2, 102714760), (4, 51357380), (5, 41085904), (8, 25678690), (10, 20542952), (16, 12839345), (19, 10812080), (20, 10271476), (38, 5406040), (40, 5135738), (76, 2703020), (80, 2567869), (95, 2162416), (152, 1351510), (190, 1081208), (304, 675755), (380, 540604), (760, 270302), (1520, 135151)]