28751415

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:141

約数の個数: 96

約数和(自身を含む): 60469248

約数和(自身を除く): 31717833

約数列:

[1, 3, 5, 7, 11, 15, 21, 31, 33, 35, 55, 73, 77, 93, 105, 121, 155, 165, 217, 219, 231, 341, 363, 365, 385, 465, 511, 605, 651, 803, 847, 1023, 1085, 1095, 1155, 1533, 1705, 1815, 2263, 2387, 2409, 2541, 2555, 3255, 3751, 4015, 4235, 5115, 5621, 6789, 7161, 7665, 8833, 11253, 11315, 11935, 12045, 12705, 15841, 16863, 18755, 24893, 26257, 26499, 28105, 33945, 35805, 44165, 47523, 56265, 61831, 74679, 78771, 79205, 84315, 124465, 131285, 132495, 174251, 185493, 237615, 273823, 309155, 373395, 393855, 522753, 821469, 871255, 927465, 1369115, 1916761, 2613765, 4107345, 5750283, 9583805, 28751415]

約数ペア:

[(1, 28751415), (3, 9583805), (5, 5750283), (7, 4107345), (11, 2613765), (15, 1916761), (21, 1369115), (31, 927465), (33, 871255), (35, 821469), (55, 522753), (73, 393855), (77, 373395), (93, 309155), (105, 273823), (121, 237615), (155, 185493), (165, 174251), (217, 132495), (219, 131285), (231, 124465), (341, 84315), (363, 79205), (365, 78771), (385, 74679), (465, 61831), (511, 56265), (605, 47523), (651, 44165), (803, 35805), (847, 33945), (1023, 28105), (1085, 26499), (1095, 26257), (1155, 24893), (1533, 18755), (1705, 16863), (1815, 15841), (2263, 12705), (2387, 12045), (2409, 11935), (2541, 11315), (2555, 11253), (3255, 8833), (3751, 7665), (4015, 7161), (4235, 6789), (5115, 5621)]