40438160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{72211}}^1$

素因数の和:72231

約数の個数: 40

約数和(自身を含む): 107451456

約数和(自身を除く): 67013296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 72211, 144422, 288844, 361055, 505477, 577688, 722110, 1010954, 1155376, 1444220, 2021908, 2527385, 2888440, 4043816, 5054770, 5776880, 8087632, 10109540, 20219080, 40438160]

約数ペア:

[(1, 40438160), (2, 20219080), (4, 10109540), (5, 8087632), (7, 5776880), (8, 5054770), (10, 4043816), (14, 2888440), (16, 2527385), (20, 2021908), (28, 1444220), (35, 1155376), (40, 1010954), (56, 722110), (70, 577688), (80, 505477), (112, 361055), (140, 288844), (280, 144422), (560, 72211)]