337840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:157

約数の個数: 40

約数和(自身を含む): 812448

約数和(自身を除く): 474608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 103, 164, 205, 206, 328, 410, 412, 515, 656, 820, 824, 1030, 1640, 1648, 2060, 3280, 4120, 4223, 8240, 8446, 16892, 21115, 33784, 42230, 67568, 84460, 168920, 337840]

約数ペア:

[(1, 337840), (2, 168920), (4, 84460), (5, 67568), (8, 42230), (10, 33784), (16, 21115), (20, 16892), (40, 8446), (41, 8240), (80, 4223), (82, 4120), (103, 3280), (164, 2060), (205, 1648), (206, 1640), (328, 1030), (410, 824), (412, 820), (515, 656)]