51805775

素因数分解:

$5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 78233088

約数和(自身を除く): 26427313

約数列:

[1, 5, 7, 23, 25, 35, 61, 115, 161, 175, 211, 305, 427, 575, 805, 1055, 1403, 1477, 1525, 2135, 4025, 4853, 5275, 7015, 7385, 9821, 10675, 12871, 24265, 33971, 35075, 36925, 49105, 64355, 90097, 121325, 169855, 245525, 296033, 321775, 450485, 849275, 1480165, 2072231, 2252425, 7400825, 10361155, 51805775]

約数ペア:

[(1, 51805775), (5, 10361155), (7, 7400825), (23, 2252425), (25, 2072231), (35, 1480165), (61, 849275), (115, 450485), (161, 321775), (175, 296033), (211, 245525), (305, 169855), (427, 121325), (575, 90097), (805, 64355), (1055, 49105), (1403, 36925), (1477, 35075), (1525, 33971), (2135, 24265), (4025, 12871), (4853, 10675), (5275, 9821), (7015, 7385)]