20299560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{1217}}^1$

素因数の和:1370

約数の個数: 64

約数和(自身を含む): 61387200

約数和(自身を除く): 41087640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1217, 1390, 1668, 2085, 2434, 2780, 3336, 3651, 4170, 4868, 5560, 6085, 7302, 8340, 9736, 12170, 14604, 16680, 18255, 24340, 29208, 36510, 48680, 73020, 146040, 169163, 338326, 507489, 676652, 845815, 1014978, 1353304, 1691630, 2029956, 2537445, 3383260, 4059912, 5074890, 6766520, 10149780, 20299560]

約数ペア:

[(1, 20299560), (2, 10149780), (3, 6766520), (4, 5074890), (5, 4059912), (6, 3383260), (8, 2537445), (10, 2029956), (12, 1691630), (15, 1353304), (20, 1014978), (24, 845815), (30, 676652), (40, 507489), (60, 338326), (120, 169163), (139, 146040), (278, 73020), (417, 48680), (556, 36510), (695, 29208), (834, 24340), (1112, 18255), (1217, 16680), (1390, 14604), (1668, 12170), (2085, 9736), (2434, 8340), (2780, 7302), (3336, 6085), (3651, 5560), (4170, 4868)]