289803440

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{27653}}^1$

素因数の和:27797

約数の個数: 40

約数和(自身を含む): 678961008

約数和(自身を除く): 389157568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 262, 524, 655, 1048, 1310, 2096, 2620, 5240, 10480, 27653, 55306, 110612, 138265, 221224, 276530, 442448, 553060, 1106120, 2212240, 3622543, 7245086, 14490172, 18112715, 28980344, 36225430, 57960688, 72450860, 144901720, 289803440]

約数ペア:

[(1, 289803440), (2, 144901720), (4, 72450860), (5, 57960688), (8, 36225430), (10, 28980344), (16, 18112715), (20, 14490172), (40, 7245086), (80, 3622543), (131, 2212240), (262, 1106120), (524, 553060), (655, 442448), (1048, 276530), (1310, 221224), (2096, 138265), (2620, 110612), (5240, 55306), (10480, 27653)]