20659140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{114773}}^1$

素因数の和:114788

約数の個数: 36

約数和(自身を含む): 62666604

約数和(自身を除く): 42007464

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 114773, 229546, 344319, 459092, 573865, 688638, 1032957, 1147730, 1377276, 1721595, 2065914, 2295460, 3443190, 4131828, 5164785, 6886380, 10329570, 20659140]

約数ペア:

[(1, 20659140), (2, 10329570), (3, 6886380), (4, 5164785), (5, 4131828), (6, 3443190), (9, 2295460), (10, 2065914), (12, 1721595), (15, 1377276), (18, 1147730), (20, 1032957), (30, 688638), (36, 573865), (45, 459092), (60, 344319), (90, 229546), (180, 114773)]