18852980

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:468

約数の個数: 48

約数和(自身を含む): 41336400

約数和(自身を除く): 22483420

約数列:

[1, 2, 4, 5, 10, 20, 37, 73, 74, 146, 148, 185, 292, 349, 365, 370, 698, 730, 740, 1396, 1460, 1745, 2701, 3490, 5402, 6980, 10804, 12913, 13505, 25477, 25826, 27010, 50954, 51652, 54020, 64565, 101908, 127385, 129130, 254770, 258260, 509540, 942649, 1885298, 3770596, 4713245, 9426490, 18852980]

約数ペア:

[(1, 18852980), (2, 9426490), (4, 4713245), (5, 3770596), (10, 1885298), (20, 942649), (37, 509540), (73, 258260), (74, 254770), (146, 129130), (148, 127385), (185, 101908), (292, 64565), (349, 54020), (365, 51652), (370, 50954), (698, 27010), (730, 25826), (740, 25477), (1396, 13505), (1460, 12913), (1745, 10804), (2701, 6980), (3490, 5402)]