42181805

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{251}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 56246400

約数和(自身を除く): 14064595

約数列:

[1, 5, 19, 29, 61, 95, 145, 251, 305, 551, 1159, 1255, 1769, 2755, 4769, 5795, 7279, 8845, 15311, 23845, 33611, 36395, 76555, 138301, 168055, 290909, 444019, 691505, 1454545, 2220095, 8436361, 42181805]

約数ペア:

[(1, 42181805), (5, 8436361), (19, 2220095), (29, 1454545), (61, 691505), (95, 444019), (145, 290909), (251, 168055), (305, 138301), (551, 76555), (1159, 36395), (1255, 33611), (1769, 23845), (2755, 15311), (4769, 8845), (5795, 7279)]