20007480

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1217}}^1$

素因数の和:1368

約数の個数: 64

約数和(自身を含む): 60510240

約数和(自身を除く): 40502760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 137, 274, 411, 548, 685, 822, 1096, 1217, 1370, 1644, 2055, 2434, 2740, 3288, 3651, 4110, 4868, 5480, 6085, 7302, 8220, 9736, 12170, 14604, 16440, 18255, 24340, 29208, 36510, 48680, 73020, 146040, 166729, 333458, 500187, 666916, 833645, 1000374, 1333832, 1667290, 2000748, 2500935, 3334580, 4001496, 5001870, 6669160, 10003740, 20007480]

約数ペア:

[(1, 20007480), (2, 10003740), (3, 6669160), (4, 5001870), (5, 4001496), (6, 3334580), (8, 2500935), (10, 2000748), (12, 1667290), (15, 1333832), (20, 1000374), (24, 833645), (30, 666916), (40, 500187), (60, 333458), (120, 166729), (137, 146040), (274, 73020), (411, 48680), (548, 36510), (685, 29208), (822, 24340), (1096, 18255), (1217, 16440), (1370, 14604), (1644, 12170), (2055, 9736), (2434, 8220), (2740, 7302), (3288, 6085), (3651, 5480), (4110, 4868)]