256051160

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{1039}}^1$

素因数の和:1212

約数の個数: 64

約数和(自身を含む): 591926400

約数和(自身を除く): 335875240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 101, 122, 202, 244, 305, 404, 488, 505, 610, 808, 1010, 1039, 1220, 2020, 2078, 2440, 4040, 4156, 5195, 6161, 8312, 10390, 12322, 20780, 24644, 30805, 41560, 49288, 61610, 63379, 104939, 123220, 126758, 209878, 246440, 253516, 316895, 419756, 507032, 524695, 633790, 839512, 1049390, 1267580, 2098780, 2535160, 4197560, 6401279, 12802558, 25605116, 32006395, 51210232, 64012790, 128025580, 256051160]

約数ペア:

[(1, 256051160), (2, 128025580), (4, 64012790), (5, 51210232), (8, 32006395), (10, 25605116), (20, 12802558), (40, 6401279), (61, 4197560), (101, 2535160), (122, 2098780), (202, 1267580), (244, 1049390), (305, 839512), (404, 633790), (488, 524695), (505, 507032), (610, 419756), (808, 316895), (1010, 253516), (1039, 246440), (1220, 209878), (2020, 126758), (2078, 123220), (2440, 104939), (4040, 63379), (4156, 61610), (5195, 49288), (6161, 41560), (8312, 30805), (10390, 24644), (12322, 20780)]