164446720

素因数分解:

$2^9\times 5^1\times {\mathrm{64237}}^1$

素因数の和:64260

約数の個数: 40

約数和(自身を含む): 394292844

約数和(自身を除く): 229846124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 64237, 128474, 256948, 321185, 513896, 642370, 1027792, 1284740, 2055584, 2569480, 4111168, 5138960, 8222336, 10277920, 16444672, 20555840, 32889344, 41111680, 82223360, 164446720]

約数ペア:

[(1, 164446720), (2, 82223360), (4, 41111680), (5, 32889344), (8, 20555840), (10, 16444672), (16, 10277920), (20, 8222336), (32, 5138960), (40, 4111168), (64, 2569480), (80, 2055584), (128, 1284740), (160, 1027792), (256, 642370), (320, 513896), (512, 321185), (640, 256948), (1280, 128474), (2560, 64237)]