287808220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{9743}}^1$

素因数の和:9970

約数の個数: 48

約数和(自身を含む): 694084608

約数和(自身を除く): 406276388

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, 9743, 14770, 19486, 29540, 38972, 48715, 68201, 97430, 136402, 194860, 272804, 341005, 682010, 1364020, 2055773, 4111546, 8223092, 10278865, 14390411, 20557730, 28780822, 41115460, 57561644, 71952055, 143904110, 287808220]

約数ペア:

[(1, 287808220), (2, 143904110), (4, 71952055), (5, 57561644), (7, 41115460), (10, 28780822), (14, 20557730), (20, 14390411), (28, 10278865), (35, 8223092), (70, 4111546), (140, 2055773), (211, 1364020), (422, 682010), (844, 341005), (1055, 272804), (1477, 194860), (2110, 136402), (2954, 97430), (4220, 68201), (5908, 48715), (7385, 38972), (9743, 29540), (14770, 19486)]