257079340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{18181}}^1$

素因数の和:18298

約数の個数: 48

約数和(自身を含む): 623133504

約数和(自身を除く): 366054164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 101, 140, 202, 404, 505, 707, 1010, 1414, 2020, 2828, 3535, 7070, 14140, 18181, 36362, 72724, 90905, 127267, 181810, 254534, 363620, 509068, 636335, 1272670, 1836281, 2545340, 3672562, 7345124, 9181405, 12853967, 18362810, 25707934, 36725620, 51415868, 64269835, 128539670, 257079340]

約数ペア:

[(1, 257079340), (2, 128539670), (4, 64269835), (5, 51415868), (7, 36725620), (10, 25707934), (14, 18362810), (20, 12853967), (28, 9181405), (35, 7345124), (70, 3672562), (101, 2545340), (140, 1836281), (202, 1272670), (404, 636335), (505, 509068), (707, 363620), (1010, 254534), (1414, 181810), (2020, 127267), (2828, 90905), (3535, 72724), (7070, 36362), (14140, 18181)]