297518140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{2311}}^1$

素因数の和:2518

約数の個数: 48

約数和(自身を含む): 644382144

約数和(自身を除く): 346864004

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 157, 164, 205, 314, 410, 628, 785, 820, 1570, 2311, 3140, 4622, 6437, 9244, 11555, 12874, 23110, 25748, 32185, 46220, 64370, 94751, 128740, 189502, 362827, 379004, 473755, 725654, 947510, 1451308, 1814135, 1895020, 3628270, 7256540, 14875907, 29751814, 59503628, 74379535, 148759070, 297518140]

約数ペア:

[(1, 297518140), (2, 148759070), (4, 74379535), (5, 59503628), (10, 29751814), (20, 14875907), (41, 7256540), (82, 3628270), (157, 1895020), (164, 1814135), (205, 1451308), (314, 947510), (410, 725654), (628, 473755), (785, 379004), (820, 362827), (1570, 189502), (2311, 128740), (3140, 94751), (4622, 64370), (6437, 46220), (9244, 32185), (11555, 25748), (12874, 23110)]