257268835

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{367}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 334909440

約数和(自身を除く): 77640605

約数列:

[1, 5, 19, 47, 95, 157, 235, 367, 785, 893, 1835, 2983, 4465, 6973, 7379, 14915, 17249, 34865, 36895, 57619, 86245, 140201, 288095, 327731, 701005, 1094761, 1638655, 2708093, 5473805, 13540465, 51453767, 257268835]

約数ペア:

[(1, 257268835), (5, 51453767), (19, 13540465), (47, 5473805), (95, 2708093), (157, 1638655), (235, 1094761), (367, 701005), (785, 327731), (893, 288095), (1835, 140201), (2983, 86245), (4465, 57619), (6973, 36895), (7379, 34865), (14915, 17249)]