261799018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4919}}^1$

素因数の和:5046

約数の個数: 32

約数和(自身を含む): 446342400

約数和(自身を除く): 184543382

約数列:

[1, 2, 13, 23, 26, 46, 89, 178, 299, 598, 1157, 2047, 2314, 4094, 4919, 9838, 26611, 53222, 63947, 113137, 127894, 226274, 437791, 875582, 1470781, 2941562, 5691283, 10069193, 11382566, 20138386, 130899509, 261799018]

約数ペア:

[(1, 261799018), (2, 130899509), (13, 20138386), (23, 11382566), (26, 10069193), (46, 5691283), (89, 2941562), (178, 1470781), (299, 875582), (598, 437791), (1157, 226274), (2047, 127894), (2314, 113137), (4094, 63947), (4919, 53222), (9838, 26611)]