20512861215

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{193}}^1\times {\mathrm{5413}}^1$

素因数の和:5649

約数の個数: 128

約数和(自身を含む): 43558705152

約数和(自身を除く): 23045843937

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 193, 231, 255, 357, 385, 561, 579, 595, 935, 965, 1155, 1309, 1351, 1785, 2123, 2805, 2895, 3281, 3927, 4053, 5413, 6369, 6545, 6755, 9843, 10615, 14861, 16239, 16405, 19635, 20265, 22967, 27065, 31845, 36091, 37891, 44583, 49215, 59543, 68901, 74305, 81195, 92021, 108273, 113673, 114835, 178629, 180455, 189455, 222915, 252637, 276063, 297715, 344505, 416801, 460105, 541365, 568365, 644147, 757911, 893145, 1012231, 1044709, 1250403, 1263185, 1380315, 1932441, 2084005, 3036693, 3134127, 3220735, 3789555, 5061155, 5223545, 6252015, 7085617, 7312963, 9662205, 11491799, 15183465, 15670635, 17760053, 21256851, 21938889, 34475397, 35428085, 36564815, 53280159, 57458995, 80442593, 88800265, 106284255, 109694445, 124320371, 172376985, 195360583, 241327779, 266400795, 372961113, 402212965, 586081749, 621601855, 976802915, 1206638895, 1367524081, 1864805565, 2930408745, 4102572243, 6837620405, 20512861215]

約数ペア:

[(1, 20512861215), (3, 6837620405), (5, 4102572243), (7, 2930408745), (11, 1864805565), (15, 1367524081), (17, 1206638895), (21, 976802915), (33, 621601855), (35, 586081749), (51, 402212965), (55, 372961113), (77, 266400795), (85, 241327779), (105, 195360583), (119, 172376985), (165, 124320371), (187, 109694445), (193, 106284255), (231, 88800265), (255, 80442593), (357, 57458995), (385, 53280159), (561, 36564815), (579, 35428085), (595, 34475397), (935, 21938889), (965, 21256851), (1155, 17760053), (1309, 15670635), (1351, 15183465), (1785, 11491799), (2123, 9662205), (2805, 7312963), (2895, 7085617), (3281, 6252015), (3927, 5223545), (4053, 5061155), (5413, 3789555), (6369, 3220735), (6545, 3134127), (6755, 3036693), (9843, 2084005), (10615, 1932441), (14861, 1380315), (16239, 1263185), (16405, 1250403), (19635, 1044709), (20265, 1012231), (22967, 893145), (27065, 757911), (31845, 644147), (36091, 568365), (37891, 541365), (44583, 460105), (49215, 416801), (59543, 344505), (68901, 297715), (74305, 276063), (81195, 252637), (92021, 222915), (108273, 189455), (113673, 180455), (114835, 178629)]