1282400

素因数分解:

$2^5\times 5^2\times 7^1\times {\mathrm{229}}^1$

素因数の和:256

約数の個数: 72

約数和(自身を含む): 3593520

約数和(自身を除く): 2311120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 70, 80, 100, 112, 140, 160, 175, 200, 224, 229, 280, 350, 400, 458, 560, 700, 800, 916, 1120, 1145, 1400, 1603, 1832, 2290, 2800, 3206, 3664, 4580, 5600, 5725, 6412, 7328, 8015, 9160, 11450, 12824, 16030, 18320, 22900, 25648, 32060, 36640, 40075, 45800, 51296, 64120, 80150, 91600, 128240, 160300, 183200, 256480, 320600, 641200, 1282400]

約数ペア:

[(1, 1282400), (2, 641200), (4, 320600), (5, 256480), (7, 183200), (8, 160300), (10, 128240), (14, 91600), (16, 80150), (20, 64120), (25, 51296), (28, 45800), (32, 40075), (35, 36640), (40, 32060), (50, 25648), (56, 22900), (70, 18320), (80, 16030), (100, 12824), (112, 11450), (140, 9160), (160, 8015), (175, 7328), (200, 6412), (224, 5725), (229, 5600), (280, 4580), (350, 3664), (400, 3206), (458, 2800), (560, 2290), (700, 1832), (800, 1603), (916, 1400), (1120, 1145)]