20162765

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 30730752

約数和(自身を除く): 10567987

約数列:

[1, 5, 7, 17, 35, 47, 49, 85, 103, 119, 235, 245, 329, 515, 595, 721, 799, 833, 1645, 1751, 2303, 3605, 3995, 4165, 4841, 5047, 5593, 8755, 11515, 12257, 24205, 25235, 27965, 33887, 39151, 61285, 82297, 85799, 169435, 195755, 237209, 411485, 428995, 576079, 1186045, 2880395, 4032553, 20162765]

約数ペア:

[(1, 20162765), (5, 4032553), (7, 2880395), (17, 1186045), (35, 576079), (47, 428995), (49, 411485), (85, 237209), (103, 195755), (119, 169435), (235, 85799), (245, 82297), (329, 61285), (515, 39151), (595, 33887), (721, 27965), (799, 25235), (833, 24205), (1645, 12257), (1751, 11515), (2303, 8755), (3605, 5593), (3995, 5047), (4165, 4841)]