1890400

素因数分解:

$2^5\times 5^2\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:176

約数の個数: 72

約数和(自身を含む): 4921560

約数和(自身を除く): 3031160

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 50, 68, 80, 85, 100, 136, 139, 160, 170, 200, 272, 278, 340, 400, 425, 544, 556, 680, 695, 800, 850, 1112, 1360, 1390, 1700, 2224, 2363, 2720, 2780, 3400, 3475, 4448, 4726, 5560, 6800, 6950, 9452, 11120, 11815, 13600, 13900, 18904, 22240, 23630, 27800, 37808, 47260, 55600, 59075, 75616, 94520, 111200, 118150, 189040, 236300, 378080, 472600, 945200, 1890400]

約数ペア:

[(1, 1890400), (2, 945200), (4, 472600), (5, 378080), (8, 236300), (10, 189040), (16, 118150), (17, 111200), (20, 94520), (25, 75616), (32, 59075), (34, 55600), (40, 47260), (50, 37808), (68, 27800), (80, 23630), (85, 22240), (100, 18904), (136, 13900), (139, 13600), (160, 11815), (170, 11120), (200, 9452), (272, 6950), (278, 6800), (340, 5560), (400, 4726), (425, 4448), (544, 3475), (556, 3400), (680, 2780), (695, 2720), (800, 2363), (850, 2224), (1112, 1700), (1360, 1390)]