51777715

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{61}}^2$

素因数の和:172

約数の個数: 36

約数和(自身を含む): 72452016

約数和(自身を除く): 20674301

約数列:

[1, 5, 11, 23, 55, 61, 115, 121, 253, 305, 605, 671, 1265, 1403, 2783, 3355, 3721, 7015, 7381, 13915, 15433, 18605, 36905, 40931, 77165, 85583, 169763, 204655, 427915, 450241, 848815, 941413, 2251205, 4707065, 10355543, 51777715]

約数ペア:

[(1, 51777715), (5, 10355543), (11, 4707065), (23, 2251205), (55, 941413), (61, 848815), (115, 450241), (121, 427915), (253, 204655), (305, 169763), (605, 85583), (671, 77165), (1265, 40931), (1403, 36905), (2783, 18605), (3355, 15433), (3721, 13915), (7015, 7381)]