20120656

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73973}}^1$

素因数の和:73998

約数の個数: 20

約数和(自身を含む): 41277492

約数和(自身を除く): 21156836

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 73973, 147946, 295892, 591784, 1183568, 1257541, 2515082, 5030164, 10060328, 20120656]

約数ペア:

[(1, 20120656), (2, 10060328), (4, 5030164), (8, 2515082), (16, 1257541), (17, 1183568), (34, 591784), (68, 295892), (136, 147946), (272, 73973)]