20930175

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:257

約数の個数: 72

約数和(自身を含む): 43601376

約数和(自身を除く): 22671201

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 97, 105, 137, 175, 225, 291, 315, 411, 485, 525, 679, 685, 873, 959, 1233, 1455, 1575, 2037, 2055, 2425, 2877, 3395, 3425, 4365, 4795, 6111, 6165, 7275, 8631, 10185, 10275, 13289, 14385, 16975, 21825, 23975, 30555, 30825, 39867, 43155, 50925, 66445, 71925, 93023, 119601, 152775, 199335, 215775, 279069, 332225, 465115, 598005, 837207, 996675, 1395345, 2325575, 2990025, 4186035, 6976725, 20930175]

約数ペア:

[(1, 20930175), (3, 6976725), (5, 4186035), (7, 2990025), (9, 2325575), (15, 1395345), (21, 996675), (25, 837207), (35, 598005), (45, 465115), (63, 332225), (75, 279069), (97, 215775), (105, 199335), (137, 152775), (175, 119601), (225, 93023), (291, 71925), (315, 66445), (411, 50925), (485, 43155), (525, 39867), (679, 30825), (685, 30555), (873, 23975), (959, 21825), (1233, 16975), (1455, 14385), (1575, 13289), (2037, 10275), (2055, 10185), (2425, 8631), (2877, 7275), (3395, 6165), (3425, 6111), (4365, 4795)]