262400

素因数分解:

$2^8\times 5^2\times {\mathrm{41}}^1$

素因数の和:67

約数の個数: 54

約数和(自身を含む): 665322

約数和(自身を除く): 402922

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 128, 160, 164, 200, 205, 256, 320, 328, 400, 410, 640, 656, 800, 820, 1025, 1280, 1312, 1600, 1640, 2050, 2624, 3200, 3280, 4100, 5248, 6400, 6560, 8200, 10496, 13120, 16400, 26240, 32800, 52480, 65600, 131200, 262400]

約数ペア:

[(1, 262400), (2, 131200), (4, 65600), (5, 52480), (8, 32800), (10, 26240), (16, 16400), (20, 13120), (25, 10496), (32, 8200), (40, 6560), (41, 6400), (50, 5248), (64, 4100), (80, 3280), (82, 3200), (100, 2624), (128, 2050), (160, 1640), (164, 1600), (200, 1312), (205, 1280), (256, 1025), (320, 820), (328, 800), (400, 656), (410, 640)]