311969515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:284

約数の個数: 64

約数和(自身を含む): 459486720

約数和(自身を除く): 147517205

約数列:

[1, 5, 11, 13, 43, 55, 65, 73, 139, 143, 215, 365, 473, 559, 695, 715, 803, 949, 1529, 1807, 2365, 2795, 3139, 4015, 4745, 5977, 6149, 7645, 9035, 10147, 10439, 15695, 19877, 29885, 30745, 34529, 40807, 50735, 52195, 65747, 77701, 99385, 111617, 131911, 172645, 204035, 328735, 388505, 436321, 448877, 558085, 659555, 854711, 1451021, 2181605, 2244385, 4273555, 4799531, 5672173, 7255105, 23997655, 28360865, 62393903, 311969515]

約数ペア:

[(1, 311969515), (5, 62393903), (11, 28360865), (13, 23997655), (43, 7255105), (55, 5672173), (65, 4799531), (73, 4273555), (139, 2244385), (143, 2181605), (215, 1451021), (365, 854711), (473, 659555), (559, 558085), (695, 448877), (715, 436321), (803, 388505), (949, 328735), (1529, 204035), (1807, 172645), (2365, 131911), (2795, 111617), (3139, 99385), (4015, 77701), (4745, 65747), (5977, 52195), (6149, 50735), (7645, 40807), (9035, 34529), (10147, 30745), (10439, 29885), (15695, 19877)]