218375020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{251}}^1\times {\mathrm{1061}}^1$

素因数の和:1362

約数の個数: 48

約数和(自身を含む): 472088736

約数和(自身を除く): 253713716

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 251, 410, 502, 820, 1004, 1061, 1255, 2122, 2510, 4244, 5020, 5305, 10291, 10610, 20582, 21220, 41164, 43501, 51455, 87002, 102910, 174004, 205820, 217505, 266311, 435010, 532622, 870020, 1065244, 1331555, 2663110, 5326220, 10918751, 21837502, 43675004, 54593755, 109187510, 218375020]

約数ペア:

[(1, 218375020), (2, 109187510), (4, 54593755), (5, 43675004), (10, 21837502), (20, 10918751), (41, 5326220), (82, 2663110), (164, 1331555), (205, 1065244), (251, 870020), (410, 532622), (502, 435010), (820, 266311), (1004, 217505), (1061, 205820), (1255, 174004), (2122, 102910), (2510, 87002), (4244, 51455), (5020, 43501), (5305, 41164), (10291, 21220), (10610, 20582)]