209980938

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{739}}^1$

素因数の和:867

約数の個数: 64

約数和(自身を含む): 460339200

約数和(自身を除く): 250358262

約数列:

[1, 2, 3, 6, 23, 29, 46, 58, 69, 71, 87, 138, 142, 174, 213, 426, 667, 739, 1334, 1478, 1633, 2001, 2059, 2217, 3266, 4002, 4118, 4434, 4899, 6177, 9798, 12354, 16997, 21431, 33994, 42862, 47357, 50991, 52469, 64293, 94714, 101982, 104938, 128586, 142071, 157407, 284142, 314814, 492913, 985826, 1206787, 1478739, 1521601, 2413574, 2957478, 3043202, 3620361, 4564803, 7240722, 9129606, 34996823, 69993646, 104990469, 209980938]

約数ペア:

[(1, 209980938), (2, 104990469), (3, 69993646), (6, 34996823), (23, 9129606), (29, 7240722), (46, 4564803), (58, 3620361), (69, 3043202), (71, 2957478), (87, 2413574), (138, 1521601), (142, 1478739), (174, 1206787), (213, 985826), (426, 492913), (667, 314814), (739, 284142), (1334, 157407), (1478, 142071), (1633, 128586), (2001, 104938), (2059, 101982), (2217, 94714), (3266, 64293), (4002, 52469), (4118, 50991), (4434, 47357), (4899, 42862), (6177, 33994), (9798, 21431), (12354, 16997)]