20405110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{3041}}^1$

素因数の和:3120

約数の個数: 32

約数和(自身を含む): 40738464

約数和(自身を除く): 20333354

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 305, 610, 671, 1342, 3041, 3355, 6082, 6710, 15205, 30410, 33451, 66902, 167255, 185501, 334510, 371002, 927505, 1855010, 2040511, 4081022, 10202555, 20405110]

約数ペア:

[(1, 20405110), (2, 10202555), (5, 4081022), (10, 2040511), (11, 1855010), (22, 927505), (55, 371002), (61, 334510), (110, 185501), (122, 167255), (305, 66902), (610, 33451), (671, 30410), (1342, 15205), (3041, 6710), (3355, 6082)]