51972280

素因数分解:

$2^3\times 5^1\times {\mathrm{641}}^1\times {\mathrm{2027}}^1$

素因数の和:2679

約数の個数: 32

約数和(自身を含む): 117177840

約数和(自身を除く): 65205560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 641, 1282, 2027, 2564, 3205, 4054, 5128, 6410, 8108, 10135, 12820, 16216, 20270, 25640, 40540, 81080, 1299307, 2598614, 5197228, 6496535, 10394456, 12993070, 25986140, 51972280]

約数ペア:

[(1, 51972280), (2, 25986140), (4, 12993070), (5, 10394456), (8, 6496535), (10, 5197228), (20, 2598614), (40, 1299307), (641, 81080), (1282, 40540), (2027, 25640), (2564, 20270), (3205, 16216), (4054, 12820), (5128, 10135), (6410, 8108)]