259999952

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{607}}^1\times {\mathrm{1409}}^1$

素因数の和:2043

約数の個数: 40

約数和(自身を含む): 531513600

約数和(自身を除く): 271513648

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 607, 1214, 1409, 2428, 2818, 4856, 5636, 9712, 11272, 11533, 22544, 23066, 26771, 46132, 53542, 92264, 107084, 184528, 214168, 428336, 855263, 1710526, 3421052, 6842104, 13684208, 16249997, 32499994, 64999988, 129999976, 259999952]

約数ペア:

[(1, 259999952), (2, 129999976), (4, 64999988), (8, 32499994), (16, 16249997), (19, 13684208), (38, 6842104), (76, 3421052), (152, 1710526), (304, 855263), (607, 428336), (1214, 214168), (1409, 184528), (2428, 107084), (2818, 92264), (4856, 53542), (5636, 46132), (9712, 26771), (11272, 23066), (11533, 22544)]