209450220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{498691}}^1$

素因数の和:498710

約数の個数: 48

約数和(自身を含む): 670242048

約数和(自身を除く): 460791828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 498691, 997382, 1496073, 1994764, 2493455, 2992146, 3490837, 4986910, 5984292, 6981674, 7480365, 9973820, 10472511, 13963348, 14960730, 17454185, 20945022, 29921460, 34908370, 41890044, 52362555, 69816740, 104725110, 209450220]

約数ペア:

[(1, 209450220), (2, 104725110), (3, 69816740), (4, 52362555), (5, 41890044), (6, 34908370), (7, 29921460), (10, 20945022), (12, 17454185), (14, 14960730), (15, 13963348), (20, 10472511), (21, 9973820), (28, 7480365), (30, 6981674), (35, 5984292), (42, 4986910), (60, 3490837), (70, 2992146), (84, 2493455), (105, 1994764), (140, 1496073), (210, 997382), (420, 498691)]