1285516

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 2388960

約数和(自身を除く): 1103444

約数列:

[1, 2, 4, 23, 46, 89, 92, 157, 178, 314, 356, 628, 2047, 3611, 4094, 7222, 8188, 13973, 14444, 27946, 55892, 321379, 642758, 1285516]

約数ペア:

[(1, 1285516), (2, 642758), (4, 321379), (23, 55892), (46, 27946), (89, 14444), (92, 13973), (157, 8188), (178, 7222), (314, 4094), (356, 3611), (628, 2047)]