12612800

素因数分解:

$2^6\times 5^2\times {\mathrm{7883}}^1$

素因数の和:7905

約数の個数: 42

約数和(自身を含む): 31039308

約数和(自身を除く): 18426508

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 7883, 15766, 31532, 39415, 63064, 78830, 126128, 157660, 197075, 252256, 315320, 394150, 504512, 630640, 788300, 1261280, 1576600, 2522560, 3153200, 6306400, 12612800]

約数ペア:

[(1, 12612800), (2, 6306400), (4, 3153200), (5, 2522560), (8, 1576600), (10, 1261280), (16, 788300), (20, 630640), (25, 504512), (32, 394150), (40, 315320), (50, 252256), (64, 197075), (80, 157660), (100, 126128), (160, 78830), (200, 63064), (320, 39415), (400, 31532), (800, 15766), (1600, 7883)]