166400

素因数分解:

$2^9\times 5^2\times {\mathrm{13}}^1$

素因数の和:41

約数の個数: 60

約数和(自身を含む): 443982

約数和(自身を除く): 277582

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 32, 40, 50, 52, 64, 65, 80, 100, 104, 128, 130, 160, 200, 208, 256, 260, 320, 325, 400, 416, 512, 520, 640, 650, 800, 832, 1040, 1280, 1300, 1600, 1664, 2080, 2560, 2600, 3200, 3328, 4160, 5200, 6400, 6656, 8320, 10400, 12800, 16640, 20800, 33280, 41600, 83200, 166400]

約数ペア:

[(1, 166400), (2, 83200), (4, 41600), (5, 33280), (8, 20800), (10, 16640), (13, 12800), (16, 10400), (20, 8320), (25, 6656), (26, 6400), (32, 5200), (40, 4160), (50, 3328), (52, 3200), (64, 2600), (65, 2560), (80, 2080), (100, 1664), (104, 1600), (128, 1300), (130, 1280), (160, 1040), (200, 832), (208, 800), (256, 650), (260, 640), (320, 520), (325, 512), (400, 416)]