1281628545

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{997}}^1\times {\mathrm{1993}}^1$

素因数の和:3041

約数の個数: 32

約数和(自身を含む): 2101452672

約数和(自身を除く): 819824127

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 997, 1993, 2991, 4985, 5979, 9965, 14955, 29895, 42871, 85699, 128613, 214355, 257097, 428495, 643065, 1285485, 1987021, 5961063, 9935105, 29805315, 85441903, 256325709, 427209515, 1281628545]

約数ペア:

[(1, 1281628545), (3, 427209515), (5, 256325709), (15, 85441903), (43, 29805315), (129, 9935105), (215, 5961063), (645, 1987021), (997, 1285485), (1993, 643065), (2991, 428495), (4985, 257097), (5979, 214355), (9965, 128613), (14955, 85699), (29895, 42871)]