13406720

素因数分解:

$2^9\times 5^1\times {\mathrm{5237}}^1$

素因数の和:5260

約数の個数: 40

約数和(自身を含む): 32150844

約数和(自身を除く): 18744124

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 5237, 10474, 20948, 26185, 41896, 52370, 83792, 104740, 167584, 209480, 335168, 418960, 670336, 837920, 1340672, 1675840, 2681344, 3351680, 6703360, 13406720]

約数ペア:

[(1, 13406720), (2, 6703360), (4, 3351680), (5, 2681344), (8, 1675840), (10, 1340672), (16, 837920), (20, 670336), (32, 418960), (40, 335168), (64, 209480), (80, 167584), (128, 104740), (160, 83792), (256, 52370), (320, 41896), (512, 26185), (640, 20948), (1280, 10474), (2560, 5237)]