178857812

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{997}}^1$

素因数の和:1200

約数の個数: 48

約数和(自身を含む): 368860800

約数和(自身を除く): 190002988

約数列:

[1, 2, 4, 7, 14, 28, 43, 86, 149, 172, 298, 301, 596, 602, 997, 1043, 1204, 1994, 2086, 3988, 4172, 6407, 6979, 12814, 13958, 25628, 27916, 42871, 44849, 85742, 89698, 148553, 171484, 179396, 297106, 300097, 594212, 600194, 1039871, 1200388, 2079742, 4159484, 6387779, 12775558, 25551116, 44714453, 89428906, 178857812]

約数ペア:

[(1, 178857812), (2, 89428906), (4, 44714453), (7, 25551116), (14, 12775558), (28, 6387779), (43, 4159484), (86, 2079742), (149, 1200388), (172, 1039871), (298, 600194), (301, 594212), (596, 300097), (602, 297106), (997, 179396), (1043, 171484), (1204, 148553), (1994, 89698), (2086, 85742), (3988, 44849), (4172, 42871), (6407, 27916), (6979, 25628), (12814, 13958)]