387800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{277}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 1034160

約数和(自身を除く): 646360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 277, 280, 350, 554, 700, 1108, 1385, 1400, 1939, 2216, 2770, 3878, 5540, 6925, 7756, 9695, 11080, 13850, 15512, 19390, 27700, 38780, 48475, 55400, 77560, 96950, 193900, 387800]

約数ペア:

[(1, 387800), (2, 193900), (4, 96950), (5, 77560), (7, 55400), (8, 48475), (10, 38780), (14, 27700), (20, 19390), (25, 15512), (28, 13850), (35, 11080), (40, 9695), (50, 7756), (56, 6925), (70, 5540), (100, 3878), (140, 2770), (175, 2216), (200, 1939), (277, 1400), (280, 1385), (350, 1108), (554, 700)]