256082260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{8669}}^1$

素因数の和:8896

約数の個数: 48

約数和(自身を含む): 617581440

約数和(自身を除く): 361499180

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 211, 422, 844, 1055, 1477, 2110, 2954, 4220, 5908, 7385, 8669, 14770, 17338, 29540, 34676, 43345, 60683, 86690, 121366, 173380, 242732, 303415, 606830, 1213660, 1829159, 3658318, 7316636, 9145795, 12804113, 18291590, 25608226, 36583180, 51216452, 64020565, 128041130, 256082260]

約数ペア:

[(1, 256082260), (2, 128041130), (4, 64020565), (5, 51216452), (7, 36583180), (10, 25608226), (14, 18291590), (20, 12804113), (28, 9145795), (35, 7316636), (70, 3658318), (140, 1829159), (211, 1213660), (422, 606830), (844, 303415), (1055, 242732), (1477, 173380), (2110, 121366), (2954, 86690), (4220, 60683), (5908, 43345), (7385, 34676), (8669, 29540), (14770, 17338)]