20416164016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{957247}}^1$

素因数の和:957329

約数の個数: 40

約数和(自身を含む): 41781960704

約数和(自身を除く): 21365796688

約数列:

[1, 2, 4, 8, 16, 31, 43, 62, 86, 124, 172, 248, 344, 496, 688, 1333, 2666, 5332, 10664, 21328, 957247, 1914494, 3828988, 7657976, 15315952, 29674657, 41161621, 59349314, 82323242, 118698628, 164646484, 237397256, 329292968, 474794512, 658585936, 1276010251, 2552020502, 5104041004, 10208082008, 20416164016]

約数ペア:

[(1, 20416164016), (2, 10208082008), (4, 5104041004), (8, 2552020502), (16, 1276010251), (31, 658585936), (43, 474794512), (62, 329292968), (86, 237397256), (124, 164646484), (172, 118698628), (248, 82323242), (344, 59349314), (496, 41161621), (688, 29674657), (1333, 15315952), (2666, 7657976), (5332, 3828988), (10664, 1914494), (21328, 957247)]