217198480

素因数分解:

$2^4\times 5^1\times {\mathrm{101}}^1\times {\mathrm{26881}}^1$

素因数の和:26995

約数の個数: 40

約数和(自身を含む): 510005304

約数和(自身を除く): 292806824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 101, 202, 404, 505, 808, 1010, 1616, 2020, 4040, 8080, 26881, 53762, 107524, 134405, 215048, 268810, 430096, 537620, 1075240, 2150480, 2714981, 5429962, 10859924, 13574905, 21719848, 27149810, 43439696, 54299620, 108599240, 217198480]

約数ペア:

[(1, 217198480), (2, 108599240), (4, 54299620), (5, 43439696), (8, 27149810), (10, 21719848), (16, 13574905), (20, 10859924), (40, 5429962), (80, 2714981), (101, 2150480), (202, 1075240), (404, 537620), (505, 430096), (808, 268810), (1010, 215048), (1616, 134405), (2020, 107524), (4040, 53762), (8080, 26881)]