20481790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{2897}}^1$

素因数の和:3012

約数の個数: 32

約数和(自身を含む): 42565824

約数和(自身を除く): 22084034

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 101, 202, 505, 707, 1010, 1414, 2897, 3535, 5794, 7070, 14485, 20279, 28970, 40558, 101395, 202790, 292597, 585194, 1462985, 2048179, 2925970, 4096358, 10240895, 20481790]

約数ペア:

[(1, 20481790), (2, 10240895), (5, 4096358), (7, 2925970), (10, 2048179), (14, 1462985), (35, 585194), (70, 292597), (101, 202790), (202, 101395), (505, 40558), (707, 28970), (1010, 20279), (1414, 14485), (2897, 7070), (3535, 5794)]